Compilation of ECE Mnemonics
a compilation of mnemonics for
Electronics Engineering (ECE)
by
JeMery Gentiles
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
i
Compilation of ECE Mnemonics
TABLE OF CONTENTS
Chapter I. Mathe atics………………………………………………………………………………………………………….1
Co sta t…………………………………………………………………………………………………………………….....
Co e sio ………………………………………………………………………………...………………………………….
A ith eti ………………………………………………………………………………………………………………………
Alge a…………………………………………………………………………………………………………………………..
T igo o et y………………………………………………………………………………………………………………..
Geo et y………………………………………………………………………………………………………………………
Cal ulus………………………………………………………………………………………………………………………...
Diffe e tial E uatio ………………………………………………………………………………..…….…………….
P o a ility a d “tatisti s………………………………………………………………………………………….……
Chapter II. Electro ics……………………………………………..………………….….……….….……….….……….…..19
Ele t i ity a d Mag etis …………………………………………………………………………………………….
DC/AC Ci uits…………………………………………………………………………………………………….….…….
E e gy Co e sio ………………………………………………………………………………………………….…….
“e i o du to Theo y………………………………………………………………………………….……………...
Ele t o i De i es Fu da e tals………………………………………………………………….…….………..
Co pute P i iples…………………………………………………………………………………….…….………...
Chapter III. Ge eral E gi eeri g & Applied Scie ces………………………………….….……….……..………29
General and Inorga i Che ist y…………………………………………………………….………….………..
O ga i Che ist y………………………………………………………………………………….…………………….
Physi s…………………………………………………………………………………………………….…………………...
The ody a i s…………………………………………………………………………….……………………………
“t e gth of Mate ials…………………………………………………………………………………….……………..
E gi ee i g E o o y………………………………………………………………………………….……………….
E gi ee i g Ma age e t………………………………………………………………..……………….…………
ECE La s……………………………………………………………………………….…………………….……………...
Co t a ts a d O ligatio ………………………………………………………………...……….….………………
Ge e al K o ledge……………………………………………………………………...…………..…………………
Chapter IV. Electro ic Syste s & Tech ologies…………………………………….….….……………….……..60
P i iples of Co
u i atio …………………………………………………………………….………..………
Modulatio ……………………………………………………………………………………………….…………..……
Radio Re ei e a d Noise……………………………………………………………………….…………….…….
RF “pe t u
ith Radio P opagatio …………………………………………….………….………………..
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
ii
Compilation of ECE Mnemonics
Mi o a e Co
u i atio ……………………………………………………………….……………………..
Telepho y……………………………………………………………………….………………….…………………….
Fi e opti s……………………………………………………………………………………….………………………
Data Co
u i atio ……………………………………………………………………….…………….…………
B oad ast a d A ousti …………………………………………………………………….………………….…..
T a s issio Li es………………………………………………………………………….………………….….…
Wa e P opagatio a d A te a…………………………………………………….………………….……..
Na igatio al Aids a d Rada …………………………………………………………………………….….…...
“atellite Co
u i atio ………………………………………………………………………………………..…
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
iii
Compilation of ECE Mnemonics
MATH
Constant
Mnemonic device
May I have a large container of coffee?
Explanation
Counting the letters of each word gives you the value of pi to 7 places.
Mnemonic device
How i need a drink, alcoholic of course, after the heavy chapters involving geodesy
Explanation
The lengths of the words constitute the number of pi; 3,14...
Mnemonic device
Sir, I know a rhyme excelling in mystic force and magic spelling. Celestial spirits elucidate, all
my own striving can't relate
Explanation
The lengths of the words constitute the number of pi; 3,14...
Mnemonic device
How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics!
Explanation
The lengths of the words constitute the number of pi; 3,14...
Mnemonic device
"May I have a large container of coffee? Thank you!"
Explanation
The polite version of the pi (3.141592654...) mnemonic, giving two extra digits. Number of letters in each
ord is the corresponding digit in pi.
Sentences to remember Pi
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986
280348253421170679...
Count the characters in the words:
How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics. All
of thy geometry, HerrPlanck, is fairly hard...:
3.14159265358979323846264...
10.
11.
12.
13.
More examples:
I took a quick glimpsing at bright stars far north. (3.)1415926535
I made a glass alligator...(3.)14159
"Can I have a Pepsi? Carbonate it please. Right now!" 3.141592653 by Jake
Now I took a drink carefully as Shelly sings. 3.14159265
Tom, I need a drink. Powerades do things. Tomas -- you fetch Powerade.3.14159265358
And I love a giant continent on waters large and great. Computer Megastore Quality
Hamburger Set is now everyday sold inside my hotrod. 3.1415926535897932384626
I hope I dance beautiful in eleven years for mommy. (3.)1415926535
I love a seven backboned TV. Shrews which ate seven gorillas fabricate
dresses.(3.)1415926535897
I want a mouse notifying me eleven times for three weekends. (3.)14159265358
For a time I stood screaming at George while Ann cried. 3.1415926535
I want a pizza, yesterday we wanted pizza, Yes-- pizza! (3.)1415926535
Yes, I like a flute. Classical is lovely music. The music revolves immensely through
knowledge. 3.14159265358979
I ride a horse.Saturdays at eleven. Every day light. (3.)1415926535
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
1
Compilation of ECE Mnemonics
14.
15.
16.
Can I tell a story regarding my family lives and views? 3.1415926535
And I Love a Pizza. Yesterday my sister drank,ate 3.141592653
I can't.I hadn't memorized pi digits since the work's terribly difficult.(3.)141592653589
Mnemonic device
We require a mnemonic to remember e whenever we scribble math To express e, remember to
memorize a sentence to simplify this
Explanation
The lengths of the words constitute the number 2.7182818284 e (the base for natural logarithms)
Constant e = 2.718281828459045



United States President Andrew Jackson served 2 terms in office. He was the 7th president and
was elected in1828.
Split up E by groups. 2.7 is easy to remember. Then, 1828 — twice. Finally, a 45-90-45 triangle.
Thus e is 2.7 1828 1828 45-90-45
e = 2.7182818284: Count the characters in the words:
To express e, remember to memorize a sentence to simplify this
or
We require a mnemonic to remember e whenever we scribble math
What is the Speed of Light?
The sentence
We guarantee certainty, clearly referring to this light mnemonic .
represents the speed of light in meters per second through the number of letters in each word:
299792458 m/s
Conversion
Mnemonic device
To convert from a Larger metric unit to a Smaller metric unit, think of alphabetical order. You
would move from the letter L to the right to get to the letter S.You would move to the left from the
S in "smaller" to get to the letter L in "larger."
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
2
Compilation of ECE Mnemonics
To convert from a LARGER to a SMALLER metric unit - move the decimal to the Right as many places as
indicated by the # of zeros in the ten's power.To convert from a SMALLER to a LARGER metric unit move the decimal to the Left as many places as indicated by the # of zeros in the ten's power.
Mnemonic device
King Hector Died Mysteriously Drink Chocolate Milk.
Explanation
Metric system... first letter in each words matches the metric system Greatest to least. ex. Kilo, Hecto,
Deka, Meter, Dec, CM, MM
Mnemonic device
Kids Hate Doing Math During Cloudy Mondays Km Hm Dam M Dm Cm Mm
Explanation
Kilometer Hectometer Dekameter Meter Decimeter Centimeter Millimeter also helps when converting
(ex.meters to millimetres) just count how many spaces from meters to millimeters to find out where to
place decimal.
Mnemonic device
Good Models know how Dunkin donuts can make U not petit
Explanation
giga, mega, kilo, hecto, deca, deci, centi, milli, micro (symbol looks like a U), nano, pico
Mnemonic device
King Henry Died While Drinking Chocolate Milk.
Explanation
This mnemonic device will help with the metric system prefixes. Kilo, Hecto, Deka,whole, deci, Centi, Milli
Mnemonic device
King Henry died bloated drinking chocolate milk.
Explanation
These stand for the Metric prefixes and base unit. Kilo, Hecto, Deca, base, Deci, Centi, Milli
Mnemonic device
King Henry Danced Merrily Down Center Main Meeting Nice People
Explanation
The Metric Prefixes:Kilo, Hecto, Deca, METER, Deci, Centi, Milli, Micro, Nano, Pico
Mnemonic device
Kangaroos Hop Down Mountians Drinking Chocolate Milk
Explanation
Kilo-Hecto-Deka-(M-L-G)-Deci-Centi_Milli
Mnemonic device
Kings hate dragons because dragons can't make money.
Explanation
Metric system prefixes (kilo, hecto, deca, base, deci, centi, milli, micro)
Mnemonic device
Kittens Hate Dogs But Do Chase Mice
Explanation
Kilo- Hecto- Deca-Base(meter)-Deci- Centi- Milli
Mnemonic device
Great mighty king henry died by drinking chunky milk
Explanation
Giga, mega, kilo, hecto, deka, BASE, deci, centi, milli,
Mnemonic device
Kill Him Dead Or Don't Call Me
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
3
Compilation of ECE Mnemonics
Kilo
Hecto
Deco
(Meters, Liters, OR Grams)
Deci
Centi
Mili
This allows for all metric measurements, not just meters.











Metric System
King Henry Drinks Much Dark Chocolate Milk
The order of prefixes in the metric system, for every power of ten from 3 to -3,
is Kilometre, Hectometre,Decametre, Metre, Decimetre, Centimetre, Millimetre:
King Hector's Daffy Mother Drinks Chocolate Milk
King Henry's Daughter Makes Delicious Chocolate Muffins
King Henry Died Monday Drinking Chocolate Milk
King Henry Died! Mother Didn't Care Much
King Hector Dector Makes Delicious Chocolate Milk
Kangaroos Hop Down Mountains During Cold Months
Kings Have Diamonds. Most Diamonds Cost Money.
King Henry Died Monday During Christmas Mass.
This variant is for the prefixes Kilo-, Hecto-, Deca-, then the Base unit (such as metre, gram, litre), then
the prefixesDeci-, Centi-, Milli-:
Kings Have Diamonds But Diamonds Cost Money
The prefixes for powers of ten from 18 to -18 using increments of 3 are Exa- (18), Peta- (15), Tera(12), Giga- (9), Mega- (6), Kilo- (3), unit (0), Milli- (-3), Micro- (-6), Nano- (-9), Pico- (-12), Femto- (15), Atto- (-18):
Exacting Petals, Terribly Gigantic Megaphones Killed
1 Million Microscopic Nasturtiums Picked Freshly by Attorneys.
A subset of the prefixes is Tera- (12), Giga- (9), Mega- (6), Micro- (-6), Nano- (-9), Pico- (-12), Femto- (15),Atto- (-18):
The Gooey Monster May Not Pick Five Apples.
Arithmetic
MDAS - My Dear Aunt Sally
Mnemonic device
Please Exuse My Dear Aunt Sally
Explanation
Order Of Operations- parentheses,exponents,multiplication,
divison, addition ans subtraction
Mnemonic device
Please Excuse My Dear Aunt Sally For Little Rock
Explanation
Used to remember the order of arithmetic operations (Parentheses, Exponent, Multiply, Divide, Add,
Subtract, From, Left, to Right)
Mnemonic device
People everywhere must devour additional seafood.
Explanation
Order of operations
Parentheses, exponents. multiplication, division, addition, subtraction
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
4
Compilation of ECE Mnemonics
Order of Calculations in Math
For remembering the order of calculations in math:
Put Every Man Down And Shout
Also:
Please Excuse My Dear Aunt Sally
Please Execute My Dog And Soon
The order: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
Mnemonic device
Kentucky
Chicken
Fried
Explanation
Used to remember division of fractions rule:
Kentucky: "K"eep the first fraction
Chicken: "C"hange the division to multiplication
Fried: "F"lip the second fraction
Dividing Fractions
Kentucky Chicken Fried
Notice the name is switched a little from that most famous fast-food chicken joint from blue grass
country. Use "Kentucky Chicken Fried" to remember KCF.
K -- Keep (the first fraction)
C -- Change (the sign from divide to multiply)
F -- Flip (the last fraction)
Mnemonic device
I ate and ate until I was sick on the floor. 8 x 8 = 64.
Explanation
multiplication mnem.
Mnemonic device
8 times 8 fell on the floor, pick it up and its 64
Explanation
its an easy way to remember 8 x 8.
Mnemonic device
Six and Eight went out to skate, when they came back they were fourty-eight.
Explanation
A mnemonic to remember what 6x8 is
Mnemonic device
To multiply by 9, hold hands palm down in front of you, and fold down the finger (counting from
the left pinky to the right pinky) of the number multiplied by 9. The fingers to the left of the folded
down one will give you the number of tens. The fingers to the right of the folded down one will
give you the number of ones.
Explanation
Multiplication of 9 x any number from one to 10)
Mnemonic device
The Rule of Nines - Multiplication
Explanation
Between one times and 9 times nine, the numbers in the result always add up to nine ! 9 1+8 2+7 3+6,
etc.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
5
Compilation of ECE Mnemonics
The Rule of Nines - Multiplication
Between one times and 9 times nine, the numbers in the result always add up to nine !
9
1+8
2+7
3+6
etc.
Mnemonic device
Does McDonald's Sell CheeseBurgers and Shakes? (DMSCBS)
Explanation
Order of the algorithm of a long division problem. DMSCBS stands for Divide, Multiply, Subtract, Check
that the divisor is larger than your remainder, Bring down the next number, and Start all over again.
Mnemonic device
No Dirty Dogs! Numerator Divided (by) Denominator
Explanation
To read or convert fractions rememberNumerator Divided (by) Denominator.3/53 divided by 5 = 0.6 Hint:
the decimal six tenths is equivalent to three fifths.
Students tend to divide the LARGER # by the SMALLER number and commonly miss these types of
items. Also, I teach my students to automatically "annex 0's by writing the "understood decimal, placing it
on the quotient bar directly above, and then annexing at least two zeros.
Mnemonic device
Everybody's Daddy, Mother, Sister, Brother, Reunion, Celebration
Explanation
Estimate, Divide, Multiply, Subtract, Bring Down, Redo (all steps), Check (by multiplying the quotient plus any remanider times the divisor.) Students use compatable numbers to estimate the quotient. Then follow each step to complete the division. ALWAYS check by multiplication to find the dividend. Note: If it
is a decimal number that repeats - it will never be the exact dividend but will round to the exact
dividend.Brenda Woods shared this one & my stuedents added the ist & last words.
Mnemonic device
Dull Monkeys Swim Backwards
or
Does Mcdonalds Sell Burgers
Explanation
divide, multiply, subtract and bring down
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
6
Compilation of ECE Mnemonics
Mnemonic device
"Mr. Mean"
draw a face
++
C
- supposed to be division symbol
Explanation
Mr. Mean never smiles and makes you work
start with the eyes-add #'s
nose-count #'s
mouth-divide by that number
The steps for long division
Dracula Must Suck Blood
1) The steps for long division are Divide, Multiply, Subtract, Bring Down:

Dad Mom Sister Brother

Dead Monkies Smell Bad
2) Everybody's Daddy, Mother, Sister, Brother, Reunion, Celebration
for:
Estimate, Divide, Multiply, Subtract, Bring Down, Redo (all steps), Check (by multiplying the
quotient - plus any remanider times the divisor.)
3) Does McDonald's Sell CheeseBurgers and Shakes?
Order of the algorithm of a long division problem:
Divide, Multiply, Subtract, Check that the divisor is larger than your remainder, Bring down the
next number, andStart all over again.
Mnemonic device
BODMAS
Explanation
stands for Bracket Of Division Multiplication, Addition and Substraction..
Mnemonic device
BIDMAS
Explanation
Brackets, Indices, Division, Multiplication, Addition, Subtraction
Mnemonic device
Please Excuse My Dear Aunt Sally!
Explanation
PEMDAS,the order of operations.
Parenthesis
Exponents
Multplication or Division [which ever is first from left to right]
Addition or Subtraction [which ever is first from left to right]
Sentence to remember Roman Numerals
The ascending order of Roman numerals: LCDM:
Lucky Cows Drink Milk
Lucy Can't Drink Milk
The Roman numerals in order for I, V, X (1, 5, 10)
I Vant XRays
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
7
Compilation of ECE Mnemonics
The Roman numerals in order for I V X L C D M (1 5 10 50 100 500 1000)
I Value Xylophones Like Cows Dig Milk
A Poem to remember all the Roman numerals:
M's "mille" (or 1000 said)
D's half (500 - quickly read!)
C's just a 100 (century!)
and L is half again - 50!
So all that's left is X and V
(or 10 and 5) - and I - easy!
Algebra
On another mathematical subject, some uses EIEIO as a
mnemonic for extracting roots and when the absolute value symbols are
required in the answer Even Index, Even In yielding Odd (exponents).
Many people remember the Order of Operation in Maths with the word Brackets Of (fractions: 1/2 of 2)
Division Multiplication Addition Subtraction (BODMAS or BOMDAS)
Order of Operations
PEMDAS- Parenthesis, Exponents, Multiplication & Division, Addition & Subtraction can be remembered
by the phrase: "Please excuse my dear Aunt Sally."
For those wishing to remember which is the domain and which the range:
^y
|
|-----\___
| _ \__|~@@@@@@@
| |_| \ ~~@@@@@@
|____ /
~~@@@@@@@
|____| /
|-----/
|
+-------------------> x
Mnemonic device
DRY MIXRemember variables and how to graph.
Explanation
DRY- dependent or responding variables are graphed on the Y-axis.Note: The letter "Y" reaches up
vertically and the letter "X" goes across itself.MIX -independent or manipulated variables are graphed on
the X-axis. (I don't know who came up with this one.)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
8
Compilation of ECE Mnemonics
How to multiply two binomials together?
BINOMIAL MULTIPLICATION
If you had to multiply two binomials together such as (a+b) and (c+d), how would you keep track of the
resulting products to make sure that you have multiplied everything and not left anything out.
Think of FOIL
First, Outer, Inner, Last
(a+b)*(c+d) = ac(first) + ad(outer) + bc(inner) +bd(last)
Factoring a Trinomial with a Lead Coefficient
1.
2.
3.
4.
5.
The "3R" Method:
"R"emove the lead coefficient, but don't throw it away. Multiply the constant with the lead
coefficent.
Factor the remaining trinomial
"R"eplace the lead coefficent you removed. Put it in front of both x's.
"R"educe! Reduce the numbers in each set of parenthesis, as you would a fraction, to lowest
terms.
Optional - use the FOIL method to check and see that I am right.
*note: if the three numbers in the trinomial have a common factor it must be factored out in the beginning
for the "3R" method to work.
Mnemonic device
The alligators always want to eat the most they can. (They always eat the bigger number.)
EX: 1 < 2
Explanation
Helps with greater then and less then.
Mnemonic device
Pinch goes to the smaller number
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
9
Compilation of ECE Mnemonics
3 < 4, 4 > 3 (Pinch the 3)
Mnemonic device
Negative B, negative B, plus or minus the square root, plus or minus the square root, of B
squared minus 4 A C, B squared minus 4 A C, all over 2 A, all over 2 A.
Explanation
This is sung to the tune of Frare Jacques. It is the quadratic formula
Mnemonic device
< is an arrow point shooting LEFT (LESS THAN)> Is an alligator's mouth opening to the larger
food (GREATER THAN).
Explanation
-9<2 Negative nine is less than (or to the left on the number line of) two. 75%> 1/2 Seventy-five percent is
greater then (50%) 1/2.
Solving absolute value inequalities
When solving absolute value inequalities: if the absolute value is greater than a number you must use the
conjunction OR, when the absolute value is less than a number you must use the conjunction AND.
To
remember
this
just
remember
two
words "GOR"-"LAND," which
translate
into "G(greater)OR" and"L(less than)AND". When I introduce this topic I tell students that we are about
to enter "GOR-LAND." (no political implications intended)
Mnemonic device
NO GAINS ON SACRIFICE
Explanation
NO GAINS ON SACRIFICE Is a Mnemonic to remember a Formula for Gain Ratio and Sacrifice
RatioGain Ratio = New Ratio - Old RatioSacrifice Ratio = Old Ratio - New RatioThis Slogan or Proverb is
applicable for all Parents who sacrifice for their Children without expecting any Gains for their sacrifices.
This Formula is usefull in application of Profit Sharing Ratio in case of a partnership firm.In case a new
partner is admitted into the Business then the old profit sharing is no longer valid and a new profit sharing
ratio is required. Besides Bringing capital into the business the new partner is also supposed to bring
some additional funds as gift for the old partners. This gift is called as Goodwill. So when the New Partner
brings Goodwill Amount into the business this amount is supposed to be distributed to the old partners in
Sacrifice Ratio.The Formula for Sacrifice Ratio BeingOld Ratio - New Ratio Similarly when any partners
retires from Partnership Firm the Outgoing partner is supposed to get his share in the Goodwill of the
partnership firm. In this case the Remaining partner [those who continue to be in Business and do not
retire] are supposed to Contribute for Goodwill for the retiring partner. This Contribution is in Gain Ratio
whihc is calculated as followsNew Ratio - Old Ratio
Several Mnemonics for Equation Solving
Greg Smith: I use many SMATHism 's in class.
Here are several:
In equation solving, I emphasize that we always do "things" in pairs to maintain equality in mathematices.
In equation solving, I emphasize that we need only perform one opposite to "get rid of" something
.
For equation solving when we want to undo something, we use B. S. well actually double B. S. to
determine where to perform the operation the Back Side of Both Sides of the equation, or the Bottom
Side of Both Sides of the equation.
When you substitute, always substitute as a quantity.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
10
Compilation of ECE Mnemonics
The verb always becomes the equal sign in equations.
Formulas:
A=(pi)r^2
Apple pies r square
A=(pi)r*r
Apple pies r round
C = (pi)d
Cherry pie delight
I=prt
I "am" p-r-t
pronounced I am pretty
rt = d
rt are d
pronounced retard
The three s's of equation solving: Substitute, simplify, solve
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
11
Compilation of ECE Mnemonics
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
12
Compilation of ECE Mnemonics
Trigonometry
Mnemonic device
Some Old Hags Can't Always Hide Their Old Age
Explanation
Trigonometry:
Sine = opposite /Hypotenuse
Cosine = Adjacent/Hypotenuse
Tangent = Opposite / Adjacent
Mnemonic device
"TSC! TSC!" said the math teacher.
"It's Over All Our Heads, AssHole," said the miscreant in the back.
Explanation
TSC is Tangent, Sine, Cosine.
Over: Opposite
All: Adjacent
Our: Opposite
Heads: Hypotenuse
Ass: Adjacent
Hole: Hypotenuse
It's not brilliant. I came up with it when I was about fifteen. But it worked.
Mnemonic device
Some People Have Curly Black Hair Thickly Plasterd Back
Explanation
To remember trigonometric functions by first letters.
sine = perpendicular / hypotenuse.
cosine = base / hypotenuse
tan = perpendicular / base
Mnemonic device
Some People Have Curly Black Hair Turning Purple Blue
Explanation
In Trignometry,
Sine=Perpendicular/ Hypotinuous,
Cosine= Base/ Hypotinuous,
Tan=Perpendicular/Base
"SOHCAHTOA":
SOH: sine x = opposite side / hypotenuse
CAH: cosine x = adjancent side / hypotenuse
TOA: tangent x = opposite side / adjacent side
Mnemonic device
SOH-CAH-TOA
Explanation
Pronounced "soak a toe-uh"SOH ... Sine = Opposite leg divided by the Hypotenuse CAH ... Cosine =
Adjacent leg divided by the Hypotenuse TOA ... Tangent = Opposite leg divided by the Adjacent leg
Many secondary school students remember the basic trigonometric functions with the phrase SOH-CAHTOA (pronounced "soak a toe-uh").
SOH ... Sine = Opposite leg divided by the Hypotenuse
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
13
Compilation of ECE Mnemonics
CAH ... Cosine = Adjacent leg divided by the Hypotenuse
TOA ... Tangent = Opposite leg divided by the Adjacent leg
The sine, cosine, and tangent ratios in a right triangle can be remembered by representing them as
strings of letters, as in SOH-CAH-TOA:
Sine = Opposite ÷ Hypotenuse
Cosine = Adjacent ÷ Hypotenuse
Tangent = Opposite ÷ Adjacent
Also used is its reverse, OHSAHCOAT (pronounced oh-sah-coat). It is interpreted as OHS-AHC-OAT, as
shown below.
Opposite ÷ Hypotenuse = Sine
Adjacent ÷ Hypotenuse = Cosine
Opposite ÷ Adjacent = Tangent
One way to remember the letters is to sound them out phonetically (i.e. "SOHCAHTOA"). [12] Another
method is to expand the letters into a phrase, such as




"Some Old Horses Chew Apples Happily Throughout Old Age"
Or, as popularized at Cincinnati's St. Xavier High School, they use the simple phrase Sally Can
Tell : Oscar Has A Hard On Always. (It's been theorized that mnemonic devices that reference strong
emotions, such as sexual feelings, imprint a stronger memory. However "Hat On" works equally well, but
seems to be less memorable.)
Oscar Had A Heap Of Apples also works if you can remember the sine, cosine, tangent order.
"One Hopes, And Hopes, On America" was widely taught to British schoolchildren during World
War II (the sine-cosine-tangent order was presumed). Not only was it a good mnemonic, it also served to
reassure the children that Great Britain was not doomed to Nazi annihilation.
You can also remember the basic trigonometric functions with the phrase "Some Old Hippie,
Caught Another Old hippie, Tripping On Acid"
For remembering the sign of trig functions in the quadrants:
All Suckers Take Calculus: in quadrants one through four
S|A
---|--T|C
(This MUST be viewed in a non-proportional font):
----------------|
|
| SIN-----COS |
| \ / |
| \ / |
|
\/
|
| TAN--1--COT |
| | /\ | |
| |/ \| |
| |/ \| |
| SEC CSC |
|
|
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
14
Compilation of ECE Mnemonics
----------------(SIN TAN SEC on left, CO-functions on right, 1 in the middle)
Using this chart (I just look at it in my head) you can remember the following things:
Across the 1:
1/SIN=CSC or 1/CSC=SIN
1/TAN=COT or 1/COT=TAN
1/SEC=COS or 1/COS=SEC
Down any triangle:
SIN^2+COS^2=1
TAN^2+1 =SEC^2
1+COT^2=CSC^2
Up any triangle:
SEC^2-1 =TAN^2 or 1+TAN^2=SEC^2
CSC^2-1 =COT^2 or CSC^2-COT^2=1
1-SIN^2=COS^2 or 1-COS^2=SIN^2
A function and its two nearest CLOCKWISE or COUNTERCLOCKWISE neighbors around any edge of
the square:
(listed starting at tan going clockwise)
TAN=SIN/COS
SIN=COS/COT
COS=COT/CSC
CSC=SEC/TAN
SEC=TAN/SIN
(listed starting at tan going counter-clockwise)
TAN=SEC/CSC
SEC=CSC/COT
CSC=COT/COS
COS=SIN/TAN
SIN=TAN/SEC
A function and its two neighbors around any edge of the square:
(listed starting at tan going clockwise)
TAN=SIN*SEC
SIN=COS*TAN
COS=COT*SIN
CSC=COT*SEC
SEC=TAN*CSC
Mnemonic device
CAST going clockwise starting from bottom right quadrant of graph axes. Always measure from
the x axis to the angle line.
Explanation
C is the area where the angle is postive for Cosine.
A is the area where the angle is postive for all trigonometric functions.
S is the area where the angle is positive for Sine.
T is the area where the angle is positive for Tangent.
Mnemonic device
All Saints Take Cocaine
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
15
Compilation of ECE Mnemonics
Trigonometric relation to remember All are positive in first quadrant, Sine is positive in second, Tangent is
positive in third and Cosine is positive in fourth
Sine? Cosine? Tangent?
1) An easy way to remember these relationships for trig functions and the right triangle. Just write down
this mnemonic:
SOH - CAH - TOA
It is pronounced "so - ka - toe - ah".
The SOH stands for "Sine of an angle is Opposite over Hypotenuse."
The CAH stands for "Cosine of an angle is Adjacent over Hypotenuse."
The TOA stands for "Tangent of an angle is Opposite over Adjacent."
Thanks Bob H.
2) Opposite /(over) Adjacent = Tan
Opposite /(over) Hypotenuse = Sine
Adjacent /(over) Hypotenuse = Cosine
To remember this just learn the following phrase:
One Ancient Teacher
Of History Swore
At His Class
Geometry
POLAR COORDINATES! WAYAYAY SIN!
Mnemonic device
All Students Take Calculus
Explanation
In quadrant I All trigonometric functions are positive; in quadrant II only Sine is; in quadrant III only
Tangent is; and in quadrant IV only Cosine is.
Mnemonic device
Add Suka To Coffee
Explanation
In quadrant I All trigonometric functions are positive; in quadrant II only Sine is; in quadrant III only
Tangent is; and in quadrant IV only Cosine is.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
16
Compilation of ECE Mnemonics
Mnemonic device
Ang Sarap Talaga ng Cobra
Explanation
In quadrant I All trigonometric functions are positive; in quadrant II only Sine is; in quadrant III only
Tangent is; and in quadrant IV only Cosine is.
Mnemonic device
pe"rim"e t er
Explanation
The t looks like a plus sign; therefore you add the rim (sides)
Mnemonic device
2(Little Willy)+ 2(Lost His)+ 2(White Hat)
Explanation
surface area of a rectangle:
2LW+2LH+2WH
Mnemonic device
pahinge ng email add para ma e=a/d = c/a sa facebook
Explanation
eccentricity
Calculus

For remembering the order of taking the derivative of a quotient in calculus, the phrase "ho-di-hi,
hi-di-ho, ho-ho" can be useful, where ho means the bottom, hi means the top, and di means the
derivative. So,
Another phrase that one may use is: "Bottom d Top, Top d bottom", where "d" stands for derivative
(note that this mnemonic does not include the crucial dividing by the bottom squared). Another phrase
memorable for sounding like a square dance is "low d high less high d low, draw the line and square
below."
Differential Calculus
Santa Claus mnemonic
Quotient rule for derivatives ala Cab Calloway: Hodehi minus hideho over hoho.
Is dc negative?
Means Integrate Sine / Differentiate cos gives negative
Differential Equation
Mnemonic device
Yes p dx equals sques p dx dx
Y times e raised to the integral of pdx equals integral of q times e raise to intgral of pdx dx
Explanation
Solution of Linear Differential Equation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
17
Compilation of ECE Mnemonics
Probability and Statistics
Mnemonic device
Mean, M-E-A-N,Add the numbers, then,Count the numbers and divide,Mean, M-E-A-N.
Explanation
Helps students remember the steps to find the mean.To remember how to find the mean, or average of a
group of numbers, sing this song to the tune of "Row, Row, Row Your Boat".
Mnemonic device
MEAN means the Average.MODE is the Most frequent.MEDIAN is the middle in a numerically
ordered set of data.Range is all #'s that are located on the number line between the highest &
lowest data.
Explanation
Mean - Add all data & use this sum as your dividend when you divide by the total number of data in the
set.Mode- There is NO MODE UNLESS one and only one number appears more than any other number
in the data set!Median - There will be two ordinal numbers in the middle of an even set of data. Find the
mean / average. This quotient may be a decimal number but there can be ONLY ONE MEDIAN
NUMBER!Range - Simply subtract the lowest data # from the highest data #. Note: You usually do not
include the extremes unless you are asked to give the range of prices. Ex. Dresses are - $48, $50. $77.
$98. In this case, the range of prices is from $48.00 to $98.00 and does include the two extremes.
Remembering the methods of finding averages
Four methods of finding averages…
Mode - is the number (or numbers) that appears most frequently in a set.
Median - is the number exactly in the middle when a set of numbers is listed in order.
Mean - is the sum of a set of numbers, divided by the number of numbers in the set.
Range - is the difference between the highest and lowest numbers in a set.
Here is the way to remember these four methods of finding averages…
Medium-Range Mean Model
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
18
Compilation of ECE Mnemonics
ELECTRONICS
DISCO - in Dc analysis, Inductor Short, Capacitor Open
Sa DC hihilahin lang yung schematic symbol. Bali yung inductor -oooo- pag hinila shorted -------- ... ung
capacitor -||- pag hinila open -| |- same sa steady state response. Pwede din gamitin yung schematic
symbol para sa capacitor blocks dc, inductor blocks ac.
Electricity & Magnetism
Maxwell Relations
A mnemonic used by physics students to remember the Maxwell relations in thermodynamics is
"Good Physicists Have Studied Under Very Fine Teachers",
which helps them remember the order of the variables in the square, in clockwise direction.
Another mnemonic used here is
"Valid Facts and Theoretical Understanding Generate Solutions to Hard Problems",
which gives the letter in the normal left to right writing direction.
Mnemonic device
Jejemon for Ferromagnetic and Jejebuster for Ferrimagnetic
Explanation
Ferromagnetism (all domains align in parallel) and Ferrimagnetism (some domain are anti-parallel)
ECE Reviewee Mnemonics Voltage is to Electric Field, Current is to Magnetic Field
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
19
Compilation of ECE Mnemonics
DC/AC Circuits
Ohm's Law
Virgins Are Rare
for: volts = amps x resistance
E = Volts
I = Current (Amperes)
R = Resistance
I = E/R or Current = Voltage / Resistance
E = I*R or Voltage = Current * Resistance
R = V/E or Resistance = Voltage / Current
The Indian sees the Eagle Over the River
_________E__________
_____I_________R____
Sort of an Ohm's Law Mnemonic
Voltage Formula?


Voltage = Current x Resistance
VladImiR Putin (V = IR)
Voodoo Doll = Curse
x Revenge
ICE - ELI :) Inductor Current Lags
Voltage, Capacitor Current Leads
Voltage
ELI the ICE man
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
20
Compilation of ECE Mnemonics
E(L)I
Voltage leads Current in an Inductor
I(C)E
Current Leads Voltage in a Capacitor
For current and voltage phase relation in capacitors and inductors
CIVIL
C I V I L Capacitor Current Voltage Current Inductor
in a capacitor, current lead voltage voltage leads current in an inductor
Current Leads or Lags Voltage in Reactive Circuits
Whether current leads voltage or lags it in reactive circuits.
In inductive ('L') circuits, voltage ('E') leads current ('I'), hence 'E L I'.
In capacitive ('C') circuits, it's the other way, so 'I C E'.
ELI the ICE man
Mnemonic device
Twinkle Twinkle Little Star Power equals I squared R
Explanation
Power in watts = V * V * I(or in SI P=U*I)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
21
Compilation of ECE Mnemonics

Energy Conversion
Energy Transferred
Energy Transferred = Potential Difference x Charge
E.T's Phone Calls
Left and Right Hand Rules
Flemming's Left and Right Hand Rules:
To remember which rule to apply for finding the relationship between motion and magnetic field
Generightor : ie use Flemming's Right hand rule for Generators; and Left hand for motors
Losses in a Transformer
Assuming a standard iron or ferrite (ie not air) cored
Transformer:
Hysteresis Eddy Magnetic ElectricalCopper : HEMEC
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
22
Compilation of ECE Mnemonics
Semiconductor Theory
Parts of an Atom
Protons
Electrons
Neutrons
PEN
BIG PAA
Boron, Indium, Gallium (all three are trivalent)
Phosphorus, Antimony, Arsenic (pentavalents)
ECE Reviewee Mnemonics Impurities:
BIG PAA
Trivalent:
B-oron
I-ndium
G-allium
(BIG is associated with number 3)
P-hosporous
A-rsenic
A-ntimony
(P sa umpisa ng PAA is Penta)
Electronic Devices Fundamentals
Resistor color code:











Bad Boys Rape Only Young Girls But Violeta Gives Willingly Grob Said Nothing
Black Boys Rape Our Young Girls But Virgins Give Willingly.Get Some Now!
Black Boys Raped Our Young Girl But Violeta Gave Willingly, Grabe Siya Noh?!
Bad boys run our young girls behind victory garden walls
Big boys race our young girls but Violet generally wins.
Big brown rabbits often yield great big vocal groans when gingerly slapped
The phrase "Bad Boys Rape Our Young Girls But Violet Gives Willingly" but is used to remember
the electronic color codes of resistors, capacitors and other electronic components. A milder version is
"Bright Boys Rave Over Young Girls But Veto Getting Wed."
"Black Bastard Raped Our Young Girl, Bloody Virginity Gone West"
For EIA electronic color code: Bad beer rots our young guts but vodka goes well – get some now

Bad boys run our young girls behind victory garden walls.

Bad boys rape our young girls but Violet gives willingly.

Big boys race our young girls but Violet generally wins.
Big brown rabbits often yield great big vocal groans when gingerly slapped
Bak BRO, Yeah Greasy Blubber's Very Grabable, Why?
B.B. ROY of Great Britan has Very Good Wife

Bye Bye Rosie Off You Go Birmingham Via Great Western

Bye Bye Rosie Off You Go Bristol Via Great Western
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
23
Compilation of ECE Mnemonics


Bye Bye Rosie Off You Go do Become a Very Good Wife
Bill Brown Realized Only Yesterday Good Boys Value Good Work
Order of Colors of Resistors
Electronic resistors have colored bands on them to denote their level of resistance. Each color represents
a number from 0 to 9. In the order of the mnemonic:
Bad Boys Ruin Our Young Girls, But Violet Goes Willingly
Bad
Girls
Black - 0
Boys
But
Brown - 1
Ruin
Violet
Red - 2
Our
Goes
Orange - 3
Young
Willingly
Yellow - 4
Green - 5
Blue - 6
Violet - 7
Grey - 8
White - 9
Better Be Right Or Your Great Big Venture Goes West
Bad Boys Rape Our Young Girls, But Violet Goes Willingly
Bad Boys Rape Our Young Girls Behind Victory Garden Walls
Bad Beer Rots Our Young Guts, But Vodka Goes Well.
Bad Boys Rough Our Young Girls, But Violet Goes Willingly
Mnemonic device
Better Be Right Or Your Great Big Venture Goes West
Explanation
Ohms value of the color bands of resistors (dark first, light last) Color first&second bands third band Black
0
.0 Brown
1
0 Red
2
00 Orange
3
000 Yellow
4
0,000 Green
5
00,000 Blue
6
000,000 Violet
7
0,000,000 Grey
8
00,000,000 White
9
000,000,000
Mnemonic device
Bad Boys Rape Our Young Girls But Violet Gives Willingly
Explanation
To remember the resistor color code (Rarely used now that the world has gone surface mount)
Mnemonic device
Bad Boys Rape Our Young Girls But Violet Gives Willingly.
Explanation
For color bands on transisiters. Black, Brown, Red, Orange, Yellow, Green, Blue, Violet Gold, White
Mnemonic device
Bad Booze Rots Our Young Guts, But Vodka Goes Well
Explanation
Resistor color band digit order: Black [0], Brown [1], Red [2], Orange [3], Yellow [4], Green [5], Blue [6],
Violet [7], Gray [8], and White[9].
Mnemonic device
Better Be Ready Or Your Great Big Venture Goes West.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
24
Compilation of ECE Mnemonics
Explanation
It is the resistor color code:Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, White.
Numerically 0-9 to get the value of a resistor via the color coded bands.(From an old Boy Scout book on
Electricity or Electronics)
Also note that red through violet are the colors of the rainbow (in order) although the ROY G. BIV
mnemonic for rainbow colors includes indigo between blue and violet.
Capacitor
Mnemonic device
yung AC makakadaan sa capacitor kasi umiilag..kaya high pass..
Transistors
Pee iN the Pot (PNP)
For transistors: to remember which one has the arrow pointing
toward the intersection of the connections.
Transistor: ( use with electronic standard symbol)
PNP - Pasok Na Pasok
NPN - NaPalabas Na
NaPasok Na
ECE Reviewee Mnemonics PNP - Pasok Na Pasok, NPN - Na
Pasok Na (so lalabas na sya), reminder lang :)
Transistor configuration:
ACE, BCB, GEB
ACE => Alpha = iC/iE
BCB => Beta = iC/iB
GEB => Gamma = iE/iB
FIFO - First In First Out
LILO - Last In Last Out
Computer Principles
Mnemonics in computer science tend to be less pervasive as most abbreviations are brief. Some terms
still warrant a mnemonic such as People Can't Memorize Computer Industry Acronyms (PCMCIA)
PCMCIA:President Clinton Makes Cornbread In Arkansas
Through the 1990s, whenever I heard about ISDN, I always thought "It Still Does Nothing."
It's because the standard documents for ISDN came out around 10 years before you could actually buy
any product. When Broadband ISDN came out (B-ISDN) there was around 3 years between
standard and product, and we knew that as "But It Still Does Nothing".
For the order of declarations in Pascal:
Let's Cook Textured Vegetable Protein
For: Labels, Constants, Types, Variables, Procedures
Mnemonic device
How To Make Love
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
25
Compilation of ECE Mnemonics
Explanation
A mnemonic for the correct spelling of the word 'HTML' (hyper text markup language) To remember the
spelling of html, instead of hmlt or hltm.
Mnemonic device
People Cannot Memorize Computer Industry Acronyms
Explanation
The PCMCIA is an acronym for Personal Computer Memory Card International Association (also has
been known as Peripheral Component Microchannel Interconnect Architecture (IBM)). Typically they are
referred to as PC Cards for simplicity.
PC Cards
Personal Computer Memory Card International Association:
People Cannot Memorize Computer Industry Acronyms
People Cannot Make Clear, Intuitive Acronyms
Personal Computer Manufacturers Can't Invent Acronyms
The PCMCIA also has been known as Peripheral Component Microchannel Interconnect Architecture
(IBM). Typically they are referred to as PC Cards for simplicity.
Mnemonic device
LoVe HAte (LVHA)
Explanation
In CSS the correct sequence to declare pseudo-selectors of anchors:
Link, Visited, Hover, Active
Cascading Style Sheets
When designing a page using CSS, the order used to design links is:
Link, Visited, Hover, Active:
LoVe HAte
Top, Right, Bottom, Left:
TRBL (TRouBLe)
Tommy Ran By Lucy
("LoVe HAte" indicates the correct order to specify the link state pseudo-classes in Cascading Style
Sheets. "TRBL" indicates the correct order to set margins or padding.)
Mnemonic device
Every Rabbit Associates Kindly With Gophers
Explanation
6 Step Process for drawing an ER schema.
Identify: Entities, Relationships, Attributes, Key constraints, Weak entities, Generalizations
Mnemonic device
He Plays Ball
Explanation
Turning off a computer
Hold Power Button
Mnemonic device
Raising Elephants Is So Utterly Boring
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
26
Compilation of ECE Mnemonics
Explanation
In Linux, pressing Ctrl+Alt+SysRq (Print Screen, on modern keyboards), releasing SysRq, and, still
holding Alt, pressing R E I S U B in that order (with a slight pause between each) will reboot even the
most stubbornly frozen system.
This works because R E I S U B are the magic SysRq keys that correspond to: resetting the keyboard
state, sending SIGTERM to all processes, sending SIGKILL to all running processes, synchronizing all
filesystems, unmounting all filesystems, and rebooting.
Networknames translation to IP-adresses
Cute White Babes Loves Hairy Dogs
The order for translating networknames to IP-adresses:
Cache
WINS
Broadcast
LMhosts
Hosts
DNS
Important Keystroke Sequence in Linux
Raising Skinny Elephants Is Utterly Boring
"Raising Skinny Elephants Is Utterly Boring" is a mnemonic device for remembering a particularly
important keystroke sequence in Linux. In the event of a total system freeze up, this is the failsafe way to
safely reboot a near-frozen computer.
Usage
The first two key sequences to deal with a frozen machine are:
Alt + Ctrl + to enter a command prompt. Normally the function keys F1 to F6 can be used.
Control-Alt-Delete. This performs a regular shutdown, if possible, which allows running services to shut
down normally.
Using 'RSEIUB' follows these two steps as a last resort. The squence is performed as follows: While
holding Alt and SysRq, press they keys R, S, E, I, U, and then B, in sequence, leaving some time
between keystrokes.
Meaning
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
27
Compilation of ECE Mnemonics
R places the keyboard in raw mode
S synchronizes the disk
E terminates all processes
I kills all processes
U remounts all filesystems read-only
B reboots the machine
ECE Reviewee Mnemonics RS NAND undefined states-LOW LOW-(think of maLANDi)
RS NOR undefined states-HIGH HIGH-(think of HORny)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
28
Compilation of ECE Mnemonics
GEAS
Chemistry
Sentences to remember the elements
Periodic Table
Group
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15 16 17 18
Period
1
H
2
Li
Be
B
C
N
O
F Ne
3
Na Mg
Al
Si
P
S
Cl Ar
4
K
5
He
Ca Sc Ti
V
Cr Mn Fe Co
Ni
Cu Zn Ga Ge As Se Br Kr
Rb Sr
Y Zr Nb Mo Tc Ru Rh
Pd
Ag Cd In Sn Sb Te
6
Cs Ba
* Hf Ta W Re Os
Pt
Au Hg Tl Pb
7
Fr
Ir
Bi
I
Xe
Po At Rn
Ra ** Rf Ha Sg Ns Hs Mt Uun Uuu
/
Lanthanides
Actinides
* La Ce Pr Nd Pm Sm Eu
Gd Tb Dy Ho Er Tm Yb Lu
** Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
bron: Carcamels Homepage
Mnemonics:
1) First eighteen elements in the periodic table:
Here He Lies Beneath Bed Clothes, Nothing On, Feeling Nervous. Naughty Margaret Always Sighs,
"Please Stop Clowning Around."
(H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar.)
2) First twenty elements in the periodic table:
Hi Hello Little Beryll Brown Cracking Nuts On Friday . Nellie's Naughty Magpie Always Sings Pop
Songs Clearly After Killing Cathy
(H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca.)
Periodic Table
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
29
Compilation of ECE Mnemonics
Memorize these phrases to learn the first eighteen elements – when you are done, make up your own
phrases for some of the others.
Happy Henry Likes Beer But Could Not Obtain Food
Happy Henry Likes Beer But Could Not Obtain Four Nuts
That gives us the first 10: Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen,
Fluorine, Neon.
Naughty Magpies Always Sing Perfect Songs Clawing Ants
That gives us the next 8: Sodium (NA), Magnesium, Aluminum, Silicon, Phosphorous, Sulfur, Chlorine,
Argon
group 1: HaLiNa Kayo Cesar at Ruby sa France! (H,Li,K,Cs,Rb,Fr)
group 2: Be, MgCano ka Sr. BaRat?
group 14: Cool Si General Sn. Pablo
group 16: O! Sarap ng Senegang Tenapay at Poto
grouop 18: HeNela ni Arlene ang Krayola ni Xena at Rona
Periodic Table
Hydrogen
He
Lies
Beneath
Bright Coloured Nights Of
Flame Neon
Natures Magicians
All
Sing
Psalms So
Clearly Argon
King
Califf Scatters Titles Vainly Crowning Men Fee Coh & Ni CuZn Gar & Gee
As
Seven Brothers Krypton
Note CuZn is pronounced Cousin, Ni is pronounced Knee.
First row transition elements:
Some Tasty Virgins Can Make Fairly Calm Nice Chemists Zealous!
Sc Ti V Cr Mn Fe Co Ni Cu Zn
Scandinavian television corrupts many french coalmen's nieces and cousins
Sc Ti V Cr Mn Fe Co Ni Cu Zn
Scottish Vicars Make Fur Coats and Knickers
Sc Ti V Cr Mn Fe Co Ni Cu Zn
Stop the very crazy man from coming near cute zoos
Sc Ti V Cr Mn Fe Co
Ni Cu Zn
and
Your zoo needs men to rule rhinos, panthers, and cheetahs
Yt Zr Nb Mo Tc Ru Rh
Pd
Ag Cd
SCrub TIl Very CRean... MaNy FEmales COntain NIce CUrvy ZoNes

And going downward (VIII B), NIce PaDded ParTs,
and the money (I B) Copper, silver and gold that you have to pay.
and after all that, (II B) If you're a Cad, you're lucky if the date ends
with a Hug
The Group VIII inert gases (helium, neon, argon, xenon and radon) may be recalled by the
sentence "Heaven Never Arsked Kriegspiel's eXtra Rent"
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
30
Compilation of ECE Mnemonics
Ito yung groupings ng elements (you need to know their
general properties):
Alkali Metal
Alkaline Earth
Basic Metal
Halogen
Noble Gas
Non-Metal
Rare Earth
Semi-Metal
Transition Metal
Mnemonic device
How He Lies Because Boys Can Not Open Flowers
Explanation
First nine elements in the Periodic Table
Mnemonic device
Harry He Likes Beer But CanNot Obtain Food
Explanation
To remember the first few elements of the Periodic Table.
Mnemonic device
Here Lies Benjamin Bold; Cry Not Old Friend; Needlessly Nature Magnifies All Simple People
Sometimes, Clots and Kings.
Explanation
To remember the first few elements of the Periodic Table.
Mnemonic device
Hi Hello Little Beryll Brown Cracking Nuts On Friday. Nellie's Naughty Magpie Always Sings Pop
Songs Clearly After Killing Cathy
Explanation
Periodic Table - Atomic Weight 1st Twenty ElementsHydrogen 1, Helium 2, Lithium 3, Beryllium 4, Boron
5, Carbon 6, Nitrogen 7, Oxygen 8, Flourine 9, Neon 10, Sodium 11, Magnesium 12, Aluminium 13,
Silicon 14, Phosphorous 15, Sulphur 16, Chlorine 17, Argon 18, Potasium 19, Calcium 20
Mnemonic device
The Periodic Table (contributors include Bob Gayhart and Dean Campbell) Group 1A (H Li Na K
Rb Cs Fr): -Highly Nasty Kids Rub Cats Fur -Hans liebt Natuerliche Kaese reibt (ueber)
(c)zentralsued Frankreich. (!) Group 2A (Be Mg Ca Sr Ba Ra): -Bearded Muggers Came Straight
Back Rapidly. -Beer Mugs Can Serve Bar Rats. Group 3 (B Al Ga In Tl): -Big Al Garner's In Trouble.
-Big All Gave in Tulsa. -Big Al Gave Incomplete Totals. -Big Al Gave Innocent Toys. -Bob Allen
Gave Indians Tennis Lessons. -Bears Always Give Indians Trouble. Group 4A (C Si Ge Sn Pb): Can Silly Germans Snatch Lead? -Conniving Sisters Get Snotty Playboys. -Can Si Get Snuckered
at the Pub? Group 5 (N P As Sb Bi): -New Popes Assign Subordinate Bishops. -Never Put Arsenic
in Silver Bullet Beer. Group 6A (O S Se Te Po): -Oil is slicker with STP. -Old Soldiers Seem Terribly
Polluted. -Oversized Sailors Sell and Tell about Polo cologne. -Oh, she sells the poles. Group 7A
(F Cl Br I At): -Frank Cleverly Brought Indian Attire. -Fairy Clowns Broil Innocent Ants. -Fat Clyde
Bribed Innocent Arthur. -"Floor Cleaner Broken?" I asked. Group 8A (He Ne Ar Kr Xe Rn): -He
Never Arrived; Karen eXited with Ron. -He needs our crazy Xerox repairman. First Row Transition
Metals (Sc Ti V Cr Mn Fe Co Ni Cu Zn): -St. Vincent Cried "Mommy!" Feeling Cold Next to Cold
Zombies. -Scott Tips Very Counterfeit Money, Feels Cold Near Cubic Zircons. -Scary Tiny Vicious
Creatures Mean Females Come Nightly to Club Z. -Scotty Vickerman Fee cony cousin. -Scott
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
31
Compilation of ECE Mnemonics
tickled Vanna's cranium, manager Fred could not cut in. Second Row Transition Metals (Y Zr Nb
Mo Tc Ru Rh Pd Ag Cd): -Yes sir, Nob. Most technicians rub Rod's pale silver Cadillac. Third Row
Transition Metals (La Hf Ta W Re Os Ir Pt Au Hg): -Larry's half taken, Wendy reached out her plate
audibly, Helga. Lanthanides (Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu): -Caesar
Procrastinated at the Nile, Permitting So Many Europeans (who were) Getting Turbid (and) Dying
(of) Home Urges (erges?) To Yell "Lutetium!". -Cecil proudly named Pam, Sam, (and) Eugene.
Good Tobin dyes hosiery early tomorrow yellow-blue. Actinides (Th Pa U Np Pu Am Cm Bk Cf Es
Fm Md No Lr): -Three planets: Uranus, Neptune, (and) Pluto. Amy cured Berkeley, California.
Einstein (and) Fermi made noble laws.
Explanation
I think no explanation is needed to use that mnemonic.Its simple but effective
Mnemonic device
Please Stop Calling My African Zebra In Latin Class.
Explanation
Used to remember the reactivity series.
Pottasium, Sodium, Calcium, Magnesium, Aluminium, Zinc, Iron, Lithium, CARBON.
ECE Reviewee Mnemonics Grp 6 of Periodic Table:
Our Solid Sex Temporary Position- Oxygen, sulfur, selenium, tellurium, polonium
ECE Reviewee Mnemonics Group 7 of Period Table Mnemonic:
Friend, Cool ang Braso, Itlog, at Atay (Flourine Chlorine Bromine Iodine Astatine)
ECE Reviewee Mnemonics Halogens:
For Clear and Bright Is Attractive (Fluorine, Chlorine, Bromine, Iodine, Astatine)..
ECE Reviewee Mnemonics ERRATUM:
Group 3 (pababa):
Baby AlaGa ni Inday at THALIA (Boron, Aluminim, Gallium, Indium, Thallium)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
32
Compilation of ECE Mnemonics
ECE Reviewee Mnemonics Periodic Table:
Group 1 (pababa):
HaLiNa Kayo Rubi at Cesar sa France (Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium,
Francium)
Group 2 (pababa):
Be, MgCano kay Sr. BaRat? (Beryllium, Magnesium, Calcium, Strontium, Barium, Radium)
Group 3 (pababa):
Baby AlaGa ni Inday at Tita (Boron, Aluminim, Gallium, Indium, Titanium)
Group 4 (pababa):
Cool Si General Sn. Pablo (Carbon, Silicon, Germanium, Tin, Lead)
Group 5 (pababa):
Nay, Parang ASwang ANg Bisita (Nitrogen, Phosphorus, Arsenic, Antimony, Bismuth)
Group 6 (pababa):
O! Sarap ng SEnegang, TEnola at POto. (Oxygen, Sulfur, Selenium, Tellurium, Polonium)
Group 8 (pababa):
Henela ni Arlene ang Krayola ni Xena at Rona (Helium, Argon, Krypton, Xenon, Radon)
Electron Shells
To remember SPDF
Some
People
Don't
F***


"sticky paint dries fast"
For the energy levels of electrons.
I have a relatively good one (albeit fairly useless) for remembering the order that the nuclear
shells get filled up as you add more nucleons to the nucleus:
spuds if pug dish of pig

If you write it down and then cross out all of the vowels except for the final 'i' you get
spdsfpgdshfpig

and since you are worying about nuclear levels, you already know the spectroscopic notation:
spdfghi s=0, p=1, ... so if you start numbering above these letters how many times the letter has occured,
you get the principal quantum number, and angular momentum of the energy states in the order that they
are filled:
11121212312312 spdsfpgdshfpig
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
33
Compilation of ECE Mnemonics
(Remember that in nuclear shells the angular momentum can be greater than
the principal quantum number...)

spectrographic notation:
Sober Physicists Don't Find Giraffes Hiding In Kitchens.
Mnemonic device
Sober Physicists Don't Find Giraffes Hiding In Kitchens
Explanation
The order of atomic orbitals (s,p,d,f,g,h,i,k). After K, they're alphabetical.
Electronic Configuration
Si Sally Pumasok Sa Pinto Si Daddy Pumasok Sa Dilim Paano Si Franky Daddy Paano Si Franky Daddy
Franky Daddy Franky (Each letter corresponds to the shape fill it in with the principal quantum number
start numbering S with 1, P with 2, D with 3, and F with 4)
"si sarah pumunta sa party. si daddy pumunta sa disco. pano si daddy?":
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 5d
Mnemonic device
si sammy pumasok sa pinto. si daddy pumasok sa door. paano si fred daddy? paano si fred
daddy? paano fred daddy?
Explanation
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 5f 5d 6p 7s 6f 6d 7p 7f 7d
Simplified metal electronegativities:
Kill
Nasty
Cats
Mangle
All
Zebras
Feed
Snarling
Plump
Hyenas
Curse
Hogs
Again
Audibly
Please
(K)
(Na)
(Ca)
(Mg)
(Al)
(Zn)
(Fe)
(Sn)
(Pb)
(H)
(Cu)
(Hg)
(Ag)
(Au)
(Pt)
or
Pretty (potassium)
Sally (sodium)
Could (calcium)
Marry (magnesium)
A (Aluminium)
Zulu (Zinc)
In (Iron)
Lovely (lead)
Honalulu (hydrogen-reference)
Causing (copper)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
34
Compilation of ECE Mnemonics
Strange (silver)
Gazes (gold)
or
Pop (Potassium)
Stars (Sodium)
Can (Calcium)
Make (Magnesium)
All (Aluminium)
Zombies (Zinc)
In (Iron)
Town (Tin)
Lose (Lead)
His (Hydrogen)
Cool (Copper)
Then we remembered our favourite food addictive for the last 3 metals. (MSG)
M (Mercury)
S (Silver)
G (Gold)
Electrochemical/-lytical cells:
Two animals -- AN OX and a RED CAT (anode -> oxidation, cathode ->
reduction)

RC cOlA (short for Royal Crown Cola):
Reduction occurs at the Cathode,
Oxidation occurs at the Annode



In a cation, the electron has gone on va-cation.
Chemistry students use the phrase "LEO says GER" to keep the two halves of a redox process
straight, since the Loss of Electrons is Oxidation while the Gain of Electrons is Reduction. Another
version is the word "OIL-RIG", meaning Oxidation Is Loss, Reduction Is Gain (of electrons).
ORE is easier - oxidation is removal of electrons
Mnemonic device
LEO GER
Explanation
Chemistry students use the phrase "LEO says GER" to keep the two halves of a redox process straight,
since the Loss of Electrons is Oxidation while the Gain of Electrons is Reduction.
Mnemonic device
OIL RIG
Explanation
O-xidation I-s L-oss (of electrons); R-eduction I-s G-ain (of electrons)
Mnemonic device
LOAN
BRA
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
35
Compilation of ECE Mnemonics
Left side Anode Negative ions attract this is used in electrodes
Blue litmus to Red litmus Acid
Mnemonic device
LOAN
Explanation
Left side Oxidation Anode attracts Negative ions
Mnemonic device
OIL RIG
Explanation
Oxidation Is Loss Reduction Is Gain
ECE Reviewee Mnemonics OILRIG : Oxidation is Loss, Reduction is Gain of Electrons
Periodic Table
Downward Rightward
Size Inc Dec
...Metallicity Inc Dec
Electron Affinity Dec Inc
Electronegativity Dec Inc
Ionization Energy Dec Inc
Cations and Anions
Cations are pawsitive.



Cations are positive, while anions are negative:
The letter t in cation looks like a positive plus sign +: ca+ion
Cations are pawsitive.
An ANION is A Negative ION
Dicarboxilic Acids (electrodes)
REDuction at CAThode: RED CAT



Oxidation and reduction in the electrodes of an electrochemical cell:
Oxidation takes place at the anode (both start with vowels), reduction takes place at the cathode
(both start with consonants).
REDuction at CAThode: RED CAT
ANode for OXidation: AN OX
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
36
Compilation of ECE Mnemonics
Oxidation and Reduction (electrons)



Acronyms for oxidation and reduction:
Oxidation Is Losing Electrons, Reduction Is Gaining Electrons: OIL RIG
Electron Loss Means Oxidation: ELMO
Losing Electrons Oxidation, Gaining Electrons Reduction: LEO the lion. GER! or LEO says GER
* Sa chem, sa redox:
"GEROA LEORA":
gain of electron reduction oxidizing agent, loss of electron oxidation reducingagent
Ideal Gas Law

Q: Why do gas molecules like to look into your window at night? A:
Because they're PVnRT'ed. (pronounce: pivnerted)
OK, I'm ducking the tomatoes. :) :)



Pregnant Virgins Never Reveal the Truth
Gas law: Pure Virgins have Nice Round Tits -- PV = nRT

The universal gas constant "PV/T" was remembered in the 1960's by saying "Pee" "Vee" over the
"Telephone". Pee Vee was a television character in the 1960s that was always talking on the telephone.
Reactivity series
Poisonous Snakes Can Make All Cats Zippy In The Lost House Capturing Special G Ps
Potassium, Sodium, Calcium, Magnesium, Aluminium, Carbon, Zinc, Iron, Tin, Lead, Hydrogen, Copper,
Silver, Gold, Platinum. Or maybe this is too long winded. Alternatively, Lithium and Mercury may also be
included: Peter's Simple Little Cousin Met
a Crazy Zulu In The LonelyHut Carrying Money: Silver, Gold, Platinum.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
37
Compilation of ECE Mnemonics

The three elements that when combined with Hydrogen form Hyrdrogen Bonds, can be
memorized by the following saying: "Hydrogens just want to have FON (Flourine, Oxygen, and Nitrogen)"
This saying is loosely based off the song "Girls Just Want to Have Fun" by Cyndi Lauper.
Diatomic elements can be memorized by using the phrase "Count HOFBrINCl" and also by the

phrase "Have No Fear Of Ice Cold Beer"(Hydrogen, Oxygen, Flourine, Bromine, Iodine, Nitrogen, and
Chlorine).
Mnemonic device
BrINClHOF (pronounced brinklehoff)
Explanation
The diatomic molecules: Bromine, Nitrogen, Chlorine, Hydrogen, Oxygen, and Fluorine.
Diatomic Molecules









The elements Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, and Bromine are always found as
diatomic molecules:
HNFOIClBr
HONClFIBr (say HONKLE-fibber)
BrINClHOF (say Brinckle-hoff)
Have No Fear Of Ice Cold Beer
Never Have Fear Of Ice Cold Beer
I Have No Bright Or Clever Friends
ClIF H Bron
HOFBrINCl Twins (twins because they exist in pairs)
There are seven such elements. The first one is the first element Hydrogen; the rest form a 7 on
the periodic table: N, O, F across, then going down Cl, Br, I.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
38
Compilation of ECE Mnemonics
Mnemonic device
kuh nuh cah mug al | zun feh sun pub | coo ag ooo plat
Explanation
Reactivity series.
K Na Ca Mg Al | Zn Fe Sn Pb | Cu Ag Au Pt
Organic Chemistry

"My Enormous Penguin Bounces Pretty High" to remember the series of alkanes : Methane,
Ethane, Propane, Butane, Pentane, Hexane
Mnemonic device
Memorize eternal propositions, but pension hectic happy occult nonsensical declarations
Explanation
The underlined characters help you to memorize the first ten alkanes: methane, ethane, propane, butane,
pentane, hexane, heptane, octane, nonane, decane
Mnemonic device
Must Every PRefect Be PErfect
Explanation
Used to remember the first five alkanes.Methane, Ethane, PRopane, Butane, PEntane
Mnemonic device
Maggie Enjoys Pacifiers & Bottles
Explanation
Use Maggie from the Simpsons to remeber the first 4 alkanes/enes/ynes: Methane, Ethane, Propane,
Butane
Mnemonic device
Oh My Such Good Apple Pie
Explanation
The first letters of "Oh My Such Good Apple Pie" correspond to those of the straight-chain dicarboxylic
acids of carbon numbers two through seven; i.e., oxalic, malonic, succinic, glutaric, adipic, and picric
acids


Dicarboxilic Acids
The sequence of dicarboxilic acids is Oxalic, Malonic, Succinic, Glutaric, Adipic, Pimelic:
Oh My Stars, Green Apples
Oh My, Such Good Apple Pie
Mnemonic device
Monarch Edward Prefers Birthday Parties His Highness Offers No Drinks
Explanation
Meth, Eth, Prop, But, Pent, Hex, Hept, Oct, Non, Dec
Mnemonic device
Do like an otter, add acid to water.
Explanation
The order to combine acid and water.
Mnemonic device
Acid to Water; All is Well.Water to Acid; What an Accident!
Explanation
Use these two mnemonics to help remember that it is OK to add acid to water, but you may get an
explosion from the excess heat created by reversing the order of mixing the two.
Mnemonic device
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
39
Compilation of ECE Mnemonics
Do what you Oughter, add acid to water!
Explanation
A reminder to only acid acid to water, and not water to acid.
Mnemonic device
Tall Gene calls Florence at our quarters to correct dumbness.
Explanation
Mohs scale of hardness: Talc gypsum calcite fluorite apatite orthoclase quartz topaz corundum diamond
Elements necessary for agriculture
The elements necessary for agriculture are:
carbon, hydrogen, calcium, iron, magnesium, manganese, copper, molybdenum, chlorine, boron
C(see) Hopkins CaFe, Mighty-good Man, Cu(see your) Money, hope they are Closed or out of Business.
ECE Reviewee Mnemonics The Dennis Covert (memorial) Hydrocarbon Mnemonic:
"Mother Eats Phone Books, Pink Hats, Suffers Oxygen Nitrogen Discomfort"
Methane, Ethane, Propane, Butane, Pentane, Hexane, Septane, Octane,
Nonane, Decane.
I loved the mneumonic my senior chem class came up with a few years ago for the first six alkanes:
Monica excites President Bill, poor Hilary.
Unfortunately it's not as topical now.
Sheelagh Halstead
ECE Reviewee Mnemonics In order to remember the substitution order on a benzene ring, just have a
ROMP:
R = position of primary substuent #1
O = Ortho = position #2
M = Meta = position #3
P = Para = position #4
Thus, Orthophenylphenol = 2-phenylphenol, and p-Bromobenzaldehyde =
4-bromobenzaldehyde
ECE Reviewee Mnemonics The amino acids:
Hydrophilic Neutral: Girls Are Very Loving If Men Can Prepare Perfect Tea
(Glycine, Alanine, Valine, Leucine, Isoleucine, Methionine, Cysteine,
Proline, Phenylalanine, Tryptophan)
Positive: Alexander Graham Spoke Through (the) Telephone (Asparagine,
Glutamine, Serine, Threonine, Tyrosine)
Neutral: Laurel And Hardy (Lysine, Arginine, Histidine)
Negative: Aspartate and Glutamate (all that's left. . . )
ECE Reviewee Mnemonics This one covers the Grignard alcohol formation reactions. I got it from one
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
40
Compilation of ECE Mnemonics
of my Organic Chemistry profs, who claims to have found it in a drawer at
Rutgers University around 1976. He attributes it to F. Westheimer of
Harvard University.
(sung to the tune of "America The Beautiful")
Oh Grignard, the Beautiful
The carbonyl is polarized, The carbon end is plus. A nucleophile will thus
attack The carbon nucleus. A Grignard yields an alcohol, Of types there
are but three; It makes a bond to correspond From C to shining C.
A Secondary's synthesis Requires an aldehyde. For Tertiary, a carbanion
And ketone may collide. When Grignards meet H2CO The product's Primary.
They stick like glue to CO2 Join C to lonely C.
ECE Reviewee Mnemonics For remembering the saturated dicarboxylic acids up to 10 carbons:
Oh My, Such Good Apple Pie, Sweet As Sugar
For: Oxalic, Malonic, Succinic, Glutaric, Adepic, Pimelic, Subaric,
Azelaic, Sebacic
ECE Reviewee Mnemonics Gibbs Energy:
Giving Homework Tonight Sucks (G = H - TS)
Physics
What does MKASK stand for?
May King Alfred Send Knights (mnemonic for Mass, Kilowatt-hour, Ampere, Seconds and Kilogram;
physics SI units)
force/mass = Acceleration
Father over Mother equals Anak (F/m=a)
converging and di-vergin.. makita mo pa lang alam mo na.. hahaaa! :)
ECE Reviewee Mnemonics Simple Harmonic Motion formulae:
f = (1/2pi) sqrt (g / L) for simple pendulum (dalawang pie, get Low!)
f = (1/2pi) sqrt (g / H) for conical pendulum (dalawang pie, get High!)
f = (1/2pi) sqrt (k / m) for springs with weights attached, (Ka Ma (may springs))
f = (1/2pi) sqrt (a / x) for SHM. (fax!)
Thermodynamics
"Pag may CaViT GiPiT":
-(Charle's Law: Volume-Temp and Gay-Lussac's Law: Pressure-Temp)
Relationship between absolute and kinematic viscosity
Q: What's new (nu)?
A: mu / rho
Q: What's new (nu)?
A: c / lambda
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
41
Compilation of ECE Mnemonics
The equation for specific heat:
q= CATMan
q = c_v * T * m
Maxwell relations
"Good Physicists Have Studied Under Very Fine Teachers", which helps remember the order of the
variables in the square, in clockwise direction. Another mnemonic used here is "Valid Facts and
Theoretical Understanding Generate Solutions to Hard Problems", which gives the letter in the normal left
to right writing direction.
Strength of Materials
Hardness
The relative hardness of minerals is determined according to Mohs Scale, named after the German
mineralogist,Friedrich Mohs, who devised it in 1812. In the original Mohs Scale, ten minerals were
arranged in order of increasing hardness and were assigned the numbers one to ten. These ten minerals
are shown in the first column of the table below:
Mohs Substance
Mohs Number Common Substance Simple Classification
Talc
1
Gypsum
2
2.5
Calcite
3
Fluorite
4
Apatite
5
5.5
SOFT
Fingernail
'Copper' coin
1
MEDIUM
Knife blade or glass
Orthoclase (feldspar) 6
6.5
Quartz
7
Topaz
8
Corundum (emery)
9
Diamond
10
Steel file
HARD
A substance with a higher Mohs number is capable of scratching a substance with a lower number.
The order of these minerals can be remembered using the
mnemonic: The Girls Can Flirt And Other Queer ThingsCan Do .
Mnemonic device
The Greedy Child Found All Our Feathery Quills To Copy Documents
Explanation
Mnemonic device for Mohs Hardness Scale. Talc, Gypsum, Calcite, Flourite, Apatite, Orthoclese
Fledspar, Quartz, Topaz, Corundum, and Diamond.
Mnemonic device
Tommy
Gave
Caroline
Four
Apples
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
42
Compilation of ECE Mnemonics
On
Fine
Quick
Tummy
Clutching
Dishes
Explanation
Mnemonic device for Mohs Hardness Scale. Talc, Gypsum, Calcite, Flourite, Apatite, Orthoclese
Fledspar, Quartz, Topaz, Corundum, and Diamond.
Maximum Shearing Stress
Mnemonic
1sang 6sing Taga-Divisoria, PI naDapa 4 times dahil walang dalang d d
Explanation
Circular ring/Hollow shaft Formula:
16TD/pi(D^4 - d^4)
Spring Deformation
Mnemonic
64 Prisoners niRape ng 3 nurse
Engineering Economy


A mnemonic for remembering the number of days in the months of the year, practically a cultural
universal in the United States, is "Thirty days hath September/April, June and November." (Although this
is only part of a longer rhyme, this is the only part that most people remember, so they commonly
complete it with words similar to "... except February, which has twenty-eight, or twenty-nine in a leap
year." The full mnemonic is "Thirty days hath September/April, June and November/All the rest have
thirty-one/except February alone/which has eight and a score/until leap year gives it one day more.")
Another mnemonic for the days of the months is not a rhyme or a jingle, but a gestalt. Whereas
the traditional mnemonic simply associates the name of the month with the number of days, this one
emphasizes the sequence. The 31 and less-than-31-day months would be easy to remember if they
simply alternated, but the pattern of month lengths is not that simple. They alternate until the fourth 31day month, July, which is immediately followed by another 31-day month. Since the human hand has four
fingers, one can, given an appropriate mind-set, perceive this pattern in a view of the knuckles of two
fists, held together. The raised knuckles can be seen as the 31-day months, the dips between them as
the 30-day-months-and-February, and the gap between the hands ignored. (Thus: left-hand-pinkyknuckle = January, dip = February, left-hand-ring-knuckle = March, dip = April, and so on to left-handindex-knuckle = July; then continue with right-hand-index-knuckle = August, dip = September, etc).
Mnemonic device
Tell your boss to fly a kite, when the labour market is tight
Explanation
A "tight labour market" means there are many jobs available
Mnemonic device
Did Fred make purple pecan pie Saturday.
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
43
Compilation of ECE Mnemonics
This represents the 7 functions of marketing. Distribution - Finance - Marketing Information - Product Price - Place - Selling. A student came up with this my first year to teach and I have used it ever since.
Engineering Management
Mnemonic device
Susie Gathered French Pies At Dinner
Explanation
State the problem
Gather Info
Form Hypothosis
Perform an Experiment
Analyze Data
Draw conclusion
Mnemonic device
People really hate eating donuts and cold cider.
Explanation
These stand for the seven steps in the scientific method. Problem, Research, Hypothese,
Experiment/data, Analyze, Conclusion, Communicate
Mnemonic device
on hanonica mice pop open round candies
Explanation
this stands for my version of the seven steps of the scientific process objective, hypothisis, materials,
procedere, observation, results, and conclusion
Be Smart!?
SMART is a mnemonic used in project management at the project objective setting stage. It is a way of
evaluating if the objectives that are being set are appropriate for the individual project.
A SMART objective is one that is:
Specific ( the goal and methods are clearly defined)
Measurable ( the objectives are measured numerically)
Achievable ( humanly possible, and the project has all the required resources)
Relevant ( avoid the temptation of defining a goal just because it fits nicely to the previous three criteria)
Time framed (set deadlines)
There is no clear consensus about precisely what the 5 keywords mean, or even what they are.
Sometimes Realistic or Result or Results-Oriented or Resourced (Favell, 2004) is seen in place of
Relevant, or Appropriate or Action in seen in place of Achievable.
The SMART criteria are guidelines suggesting that milestones should be:
Specific
Measurable
Assignable
Realistic
Time framed
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
44
Compilation of ECE Mnemonics
ECE Laws
Executive Order
EO 59 Telecommunication
EO 109 Local exchange
EO 196 Philippine Satellite
EO 205 CATV Operation
EO 255 OPM
EO 266 Cpe
EO 436 Policy for CATV
EO 467 International Satellite
EO 468 E-commerce
EO 469 NITC
EO 546 NTC
Read from bottom to top : “NeNE, IPaCO C PiLaTo”
Contracts & Obligations
Modes of Extinguishing Obligations:
PA-LO-RE-ME-CON-NO
1. PAyment
2. LOss
3. REmission
4. MErger
5. COndonation
6. NOvation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
45
Compilation of ECE Mnemonics
General Knowledge
The Order of the Planets
Here is a mnemonic to remember the order of the planets – starting from closest to the sun to furthest.
Pluto is included.
My Very Educated Mother Just Served Us Nine Pizzas
Giving us: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto (my favorite).























Getting used to eight planets:
Mnemonics
Very
Earthly
Maybe
Just
Stupid
Unto
Nullity,
Perhaps (or Perhaps Not)
My Very Energetic Mother Just Served Us Nothing
Man very easily makes jugs serve useful needs.
My valentine ejaculated, "Man, just show up naked(, please)!
Mother Visits Every Monday and Just Stays Until Noon, Period."
"My Very Easy Memory Jingle Seems Useful Naming Planets"
"Mary's Violet Eyes Made John Stay Up Nights Proposing"
"My Very Eager Mother Just Sewed Us New Pyjamas"
"Most Valuable Earth Must Jump Straight Up North Pole"
"My Very Educated Mother Just Showed Us Nine Planets"
"My Very Easy Method Just Speeds Up Naming Planets"
"My Very, Eccentric Mother Just Showed Us Nine Planets"
"Many Vile Earthlings Munch Jam Sandwiches Under Newspaper Piles"
"My Very Educated Mother Just Served Us Nine Pizzas"
"My Very Easy Method Just Sums Up Naming Planets"
"Mom Visits Every Monday, Just Stays Until Noon, Period"
"My Very Early Marriage Just Suited Uncle Ned Perfectly"
Men Very Early Made Jars Stand Upright Nicely, Period.
My Very Erotic Mate Joyfully Satisfies Unusual Needs Passionately.
My Very Empty Mouth Just Swallowed Up Ninety Peanuts.
My Very Enigmatic Mother Just Sat Upon Nigel's Plate.
Mary's Violet Eyes Makes John Sit Up Nights Pondering.
My Very Eager Mother Just Served Us Nine Pizzas.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
46
Compilation of ECE Mnemonics


Many Very Early Men Ate Juicy Steaks Using No Plates
Two-in-one mnemonic:
Mad Visionaries Earn Marvelously Juicy Spoonfuls (of) Unappetizing Nausea
The last digit in the number of letters in each word gives another mnemonic (ignore the "of").
Mnemonic device
My Very Easy Method: Just Set Up Nine Planets.
Explanation
The first letter of each word gives you the first letter of the planets, in order: Mercury, Venus, Earth, Mars,
Jupiter, Saturn, Uranus, Neptune, Pluto.
Mnemonic device
Many vicious eating monsters just scoffed up nice pigs.
Explanation
The first letter of each word gives you the first letter of the planets, in order: Mercury, Venus, Earth, Mars,
Jupiter, Saturn, Uranus, Neptune, Pluto.
Mnemonic device
Many Very Eager Men Jumped Straight Up Near Pluto
Explanation
The first letter of each word gives you the first letter of the planets, in order: Mercury, Venus, Earth, Mars,
Jupiter, Saturn, Uranus, Neptune, Pluto.
Mnemonic device
my very easy method just simplifies us naming planets
Explanation
first letters are the same as the first letters of each of the planets in order working out from the sun
Mnemonic device
Mother Very Thoughtfully Made a Jelly Sandwich Under No Protest
Explanation
Mother = MercuryVery = VenusThoughtfully = Terra (earth)Made = MarsA = Asteroid BeltJelly =
JupiterSandwich = SaturnUnder = UranusNo = NeptuneProtest = PlutoThis mnemonic has the advantage
of placing the asteroid belt in its proper place.
Mnemonic device
My Very Elderly Mother Just Sat on Uncle Neds Parrot
Explanation
First letter of each word is the first letter of each planet in order
Mnemonic device
Mom Visits Every Monday, Just Stays Until Noon, Period
Explanation
Mom = Mercury Visits = Vensu Every = Earth Monday = Mars Just = Jupiter Stays = Saturn Until =
Uranus Noon = Neptune Period = Pluto
Mnemonic device
My very Educated mother just showed us nine planets.
Explanation
First letter of each word is for a planet & this gives the order in which they are from the Sun.
Mnemonic device
My Very Energetic Mother Just Served Us Nine Pickles
Explanation
M- MercuryV- VenusE- EarthM- MarsJ- JupiterS- SaturnU- UranusN- NeptuneP- Pluto
Mnemonic device
Most Volcanoes Errupt Mullberry Jam Sandwhiches Under Normal Pressures
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
47
Compilation of ECE Mnemonics
Explanation
The Nine Planets
Mnemonic device
My Very Educated Mother Just Served Us Nectarines
Explanation
This is my new version of the planet list, because Pluto is no longer considered a planet so I changed the
original to this for my students.
Mnemonic device
Mercury Viewed Earth's Many Aspects Joyfully Sitting Under Neptune
Explanation
Remember the names of the planets (and asteroid belt) from Mercury outwards
Mnemonic device
Most Volcanoes Errupt Mullberry Jam Sandwiches Under Neptune
Explanation
I was the guy who wrote the other one about the Mullbery Jam Sanwhiches, this is the updated Verson
w/o Pluto :(
Mnemonic device
My Very Educated Mother Just Served Us Nachos
Explanation
The order of the planets from the sunMercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Mnemonic device
Mary's Violet Eyes Make Johnny Stand Up Now Period.
Explanation
The order of the planets from the sun Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune,
Pluto.
Mnemonic device
Mary's Violet Eyes Make Johnny Stand Up Now Period.
Explanation
The order of the planets from the sun Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune,
Pluto.
Mnemonic device
My Very Easy Method: Just SUN
Explanation
Order of the planets;
Mercury, venus, Earth, Mars, Jupiter, Saturn (Pluto's not a planet any more)
Mnemonic device
My Very Easy Method Just Speeds Up Naming Planets
Explanation
An easy way of remembering the planets, they have changed, but it's easy for an exam. Look:
My - Mercury
Very - Venus
Easy - Earth
Method - Mars
Just - Jupiter
Speeds - Saturn
Up - Uranus
Naming - Neptune
Planets - Pluto
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
48
Compilation of ECE Mnemonics
Just look at it once and you'll remember for life
Mnemonic device
Some Mothers Vanish Through Making a believable Jester, so uniforms' names pride.
Explanation
S: Sun
M: Mercury
V: Venus
T: Terra (Earth)
M: Mars
A: Asteroid
B: Belt
J: Jupiter
S: Saturn
U: Uranus
N: Neptune
P: Pluto
Mnemonic device
So My Very Easy Method And Break:
Just SUN Period
Explanation
S= sun
m= mercury
v= venus
e= earth
m= mars
a= asteroid
b= belt
j= jupiter
s= saturn
u= uranus
n= neptune
p= pluto
Mnemonic device
Men Very Easily Make A Jug Serve Useful Needs.
Explanation
Denotes the order of the planets of the Solar System: Mercury, Venus, Earth, Mars, (Asteroids), Jupiter,
Saturn, Uranus, Neptune.
Mnemonic device
My Very Easy Mother Just Sat on Uncle Ned!
Explanation
Updated, having lost the parrot... (Pluto)
Mnemonic device
My Very Easy Method, Just Say You Know Planets
Explanation
The order of the planets
My= MercurY
V = Venus
E = Earth
J = Jupiter
S = Saturn
U = Uranus (You sounds like "U")
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
49
Compilation of ECE Mnemonics
N = Neptune (Know has an "N" sound)
P = Pluto
Mnemonic device
Many Very Evil Men Just Shot Up Princeton, Nebraska.
Explanation
The first letter of each word gives you the first letter of the planets, in order: Mercury, Venus, Earth, Mars,
Jupiter, Saturn, Uranus, Neptune, Pluto.
Mnemonic device
My Very Easy Method: Just Sleep Until Noon.
Explanation
The first letter of each word gives you the first letter of the planets, in order: Mercury, Venus, Earth, Mars,
Jupiter, Saturn, Uranus, Neptune.
Mnemonic device
My very ecstatic monkey just scampered under Nellie's purse.
Explanation
The first letter of each word gives you the first letter of the planets, in order: Mercury, Venus, Earth, Mars,
Jupiter, Saturn, Uranus, Neptune, Pluto.
Mnemonic device
my very eccentric mailman just showed up naked.
Explanation
The first letter of each word gives you the first letter of the planets, in order: Mercury, Venus, Earth, Mars,
Jupiter, Saturn, Uranus, Neptune, Pluto.
Mnemonic device
My Very Easy Method Just Set Up Nothing
Explanation
These are the acronyms of the planets from the nearest to the sun to the farthest.
MVEMJSUP
Mnemonic device
Many Violent Evil Maniacs Join Swiftly Under Nationalism.
Explanation
The eight planets of the solar system.
Mnemonic device
This is an acrostic for memorising the planets and the dwarf planets:
Murky conVention's Efforts Mar *Series;
Jury Set yoUr Next *Planet *Chart *Abridged.
Explanation
Explanation borrowed from http://www.nakedscience.com/articles/single%20digit%20acrostics.htm
Taking the first prominent letter of each word of that sentence:
M=Mercury [Murky], V=Venus [conVention], E=Earth [Efforts], M=Mars, 'Series' sounds like Ceres;
J=Jupiter, S=Saturn, U=Uranus, N=Neptune, P=Pluto, Ch=Charon, Ab sounds like UB... [an astronomical
prefix for the next big body in space]
[I used an asterisk in places to emphasise the dwarf planets' words.]
In 2006, a committee of astronomers elected that Pluto should not be classified as a planet. They
considered how there are dwarf planets such as dwarf planet UB313 also known as Eris; and Pluto has
certain similarities with that 'dwarf planet' classification rather than 'planet' classification. My acrostic
sentence tries to mention the context of how the list of planets became what it currently is.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
50
Compilation of ECE Mnemonics
Sentences to Remember the Order of the Planets
Here we have an easy way to remember the order of the planets from the sun out. The only thing to
remember here is that every 248 years, Neptune becomes the furthest planet for 20 years
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
Men Very Easily Make Jugs Serve Useful Nocturnal Purposes
My Very Educated Mother Just Served Us Nine Pizzas
My Very Educated Mother Just Served Us Nine Pizzas Made With Grapes!(This list also
included "Milky Way Galaxy")
Mother Very Earnestly Made Jam Sandwiches Using No Peanuts Mayonaise or Glue
My Very Easy Method-Just Set Up Nine Planets
Mary's Violet Eyes Make John Stay Up Nights Praying
Mary's Violet Eyes Make John Stay Up Nights, Period.
My Very Energetic Mother Just Sat Upon (the) North Pole
My Very Elegant Mother Just Sat Upon Nine Porcupines
My Very Educated Mother Must Sent Us Nine Pickles.
My Very Educated Mother Must Served Us Nine Peas.
My Very Excellent Memory Must Served Up Nine Planets.
My Very Efficient Mother Just Served Us Pistachio Nuts
The last one is useful for the times when Pluto is actually closer than Neptune.
Thursday, August 24, 2006:
Leading astronomers declared that Pluto is no longer a planet under historic new
guidelines that downsize the solar system from nine planets to eight.
Instead, Pluto will be reclassified in a new category of "dwarf planets".
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
51
Compilation of ECE Mnemonics
My Very Excellent Mother Just Sent Us Noodles
Milli Vanilli 'Entertainment' Makes Joe Satriani Upchuck Noisily
Most Vampires Enjoy Moo Juice Sucking, Unlike Nosferatu
Molestation Vote Expected Michael Jackson Shuts Up Neverland
Muddy Vixens Entertain Men Jiggling Singles Under Noses
Militant Vietnamese's Excellent Mary Jane Soothes United Nations
More Viewers Expect Malfunction Janet Says, Uh... No
Maxed-out Visa Explained Mexican Jailbait Stripper Uncovered Nethers
Starting from the other end:
Nosy Uncle Sam Just Might Eavesdrop Voice Mails
Nonstop Unfettered Sausage Jerking Might Eradicate Vision, Man!
Newman Unhands Seinfeld's Junior Mints Elaine Voraciously Munches
Naughty Uncensored Sex Jokes Make Embarassed Virgins Mad
NattyLight Usually Satisfies Jesus Moses Expects Vodka Martinis
Nubile Uninhibited Swedes Jumpstart My Engines Very Much
News: Uptight Star Jones Messily Eats Van Morrison!
Never Underestimate Strip Joint's Most Entertaining Virtue: Mammaries
Mnemonic device
Mang Victor Espinosa Mag Jogging Sa Umaga Nang Pumayat
Explanation
Mang - Mercury
Victor - Venus
Espinosa - Earth
Mag - Mars
Jogging - Jupiter
Sa - Saturn
Umaga - Uranus
Nang - Neptune
Pumayat - Pluto
In Have Spacesuit Will Travel, Robert A. Heinlein includes 'prices' which represent the mean AU
(Astronomical Unit - mean distance of the Earth from the Sun = 93 million miles = 149 million km) of all
the planets from the sun:
MERCURY $0.39
VENUS $0.72
TERRA $1.00
MARS $1.50
ASTEROIDS (assorted prices, unimportant)
JUPITER $5.20
SATURN $9.50
URANUS $19.00
NEPTUNE $30.00
PLUTO $39.50
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
52
Compilation of ECE Mnemonics

Oh Be A Fine Girl / Guy, Kiss Me: the main sequence (O B A F G K M).
Planets in Size Order.


It used to be: MEn PLan MAny VENUS Jumps for MErcury, PLuto, MArs, VEnus (and also
Venus, Earth, Neptune, Uranus, Saturn) & JUpiter. Both the first two letters of each word are used and
the word Venus stands for itself, follows the convention of first two letters and represents 4 other planets
as well.
Now it should be:
PLanners MEasure MAy's VENUS JUmp.
Sentences to Remember the Size of the Planets
Equatorial
Diam. (km) Oblateness
Mass
Sun
1,392,000
0
332,946 .0
Jupiter
142,800
1/15
317 .833
Saturn
120,000
1/9
95 .159
Uranus
51,200
1/45
14 .500
Neptune
48,600
1/40
17 .204
Earth
12,756
1/298
1
Venus
12,104
0
0 .815005
Mars
6,787
1/193
0 .107447
Mercury
4,878
0
0 .055274
Pluto
2,300
?
0 .0026
Mean
Escape
Rotation
Incl.
Visual
Density Gravity (km/s) Period (days) (deg.) Albedo
1.41
27 .9
617 .5
25 - 35 *
1.33
2 .54
59 .6
0 .4101 **
3 .1
0.52
0.70
1 .08
35 .6
0 .4440
26 .7
0.47
1.30
0 .91
21 .3
0 .718
97 .9
0.51
1.76
1 .19
23 .8
0 .768
29 .6
0.41
5.52
1
11 .2
0 .9973
23 .4
0.37
5.24
0 .91
10 .4
243 .017
177 .3
0.65
3.94
0 .38
5 .0
1 .0260
25 .2
0.15
5.43
0 .38
4 .3
58 .646
0 .0
0.11
1.1?
0 .05
1 .2?
6 .3867
94 .
0.5?
Largest to smallest:
Jason Sat Under Ninety Eight Vicious Monster Munching Penguins
Smallest to largest:
Pete's Mother made Val's Elephant Nestle Under Sam's Jumper.
Pluto Must Meet Venus Every Night Until Saturn Jumps.
Plump Mrs. Martian Voted Every Ninth Unicorn Should Jump.
Pop Music Makes Vikings Even Naughtier Until Saxons Jiggle.
Gallilean moons of Jupiter: Io, Europa, Ganymede, Callisto



I eat green catapillers:.
I Easily Get Confused...
I Easily Get Colder
Mnemonic device
I eat grandma's cookies
Explanation
Four largest moons of Jupiter in order by their distance from Jupiter; Io, Europa, Ganymede, and Callisto.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
53
Compilation of ECE Mnemonics
Moons of Jupiter
Amalthea, Io, Europa, Ganymede, Callisto.
An Icecube Ever Grows Colder
A composite of the Galilean moons of Jupiter.
Left to right Amalthea (small, irregular moon for comparison),
Io, Europa, Ganymede, and Callisto. (C.Hamilton from NASA
spacecraft images)
Moons of Neptune
Naiad, Thalassa, Despina , Galatea, Larissa , Proteus,
Triton, Nereid.
Neptune's Tiny Dancing Girls Look Pretty To-Night
The 9 Principal Moons of Saturn
Saturn has a large number of moons (35 of which
have names).
If you wish to remember the 9 principle moons, remember your last doctors visit:
Met Dr Thip
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
54
Compilation of ECE Mnemonics
The letters stand for: Mimas, Enceladus, Tethys, Dione, Rhea, Titan, Hyperion, Iapetus, Phoebe

My Enormous Telescope Did Resolve The Hyades Immediately.
For:
Mimas
Enceladus
Tethys
Dione
Rhea
Titan
Hyperion
Iapetus





"Must Evade Tasco's Dirty Refractors - They Have Imperfections."
Mnemonic exercises teach dumb rules to help idiots!
My Easiest Time Dating Regarded The Heavenly Irene...
Mercury Very Early Made A Jump Sideways UnderNeath Pluto
Men Very Easily Make Jugs Serve Useful Nocturnal Purposes
Neptune's moons: Naiad, Thalassa, Despina , Galatea, Larissa , Proteus, Triton, Nereid.
"Neptune's tiny dancing girls look pretty to-night"
Earth’s Moon Shape
"DOC" represents phases of the Moon by shape: "D" is the waxing moon; "O" the full moon; and "C" the
waning moon. In the Southern hemisphere, this is reversed, and the mnemonic is "COD". A French
mnemonic is that the waxing moon at its first "premier" quarter phase looks like a 'p', and the waning
moon at its last "dernier" quarter looks like a 'd'. In German, the Moon is compared to a handwritten small
letter a for "Abnehmen" (waning) and a z for "Zunehmen" (waxing). One more (Northern hemisphere)
mnemonic, which works for most Romance languages, says that the Moon is a liar: it spells "C", as in
crescere (Italian for "to grow") when it wanes, and "D" as in decrescere ("decrease") when it waxes.
Mnemonic device
Captain Aquarro picks artillery targets, General Canfield leads village liberation, Scotty said.
Explanation
It the constellations of the Zodiac, with the one first that includes January 1st. so you can figure out which
month is under which sign. Not first several letters of each word help avoid any ambiguities. It's "robust".
Mnemonic device
DOC Moon == the "Man in the Moon"
Explanation
Shape of phases of the Moon correspond to shape of the letters in "DOC".
new moon (nothing), then 1st quarter is curved on right (like "D"), then full ("O") then 3rd quarter curved
on left ("C") then new (nothing).
Lather, rinse, repeat.
Mnemonic device
Dra Sid An Syn (i.e. a person's name Drasid Ansyn)
Explanation
The period of time of the moon revolving around the earth in increasing order.
Draconitic (27.2 days)
Sidereal (27.3 days)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
55
Compilation of ECE Mnemonics
Anomolistic (27.5 days)
Synodic (29.5 days)
Waxing or Waning Moon?
The mnemonic "DOC" represents:
"D" is the waxing Moon; "O" the full moon; and "C" the waning moon.
Mnemonic device
Oh, be a Fine Girl/guy/gentleman, Kiss Me.
Explanation
Spectral classes in order of decreasing stellar surface temperature O-B-A-F-G-K-M (our Sun is class G2)
Stellar Classification
Stellar classification uses a peculiar group of letters, easily remembered using the phrase,
"Oh Be A Fine Girl, Kiss Me Right Now Sweetie."
Stars are classified as O, B, A, F, G, K, M, and sometimes R, N, S, C, L and T depending on their size
and composition. The classifications R, N, S and C are given to stars with high carbon content and L and
T are given to stars that are so small they do not generate enough heat to begin nuclear fusion. These
"unusual" classifications are usually not included in mnemonics.
Also:
Oh Be A Fine Girl, Kiss Me Right Now Sweetie.
Oh Be A Fine Girl, Kiss Me Right Now! *SLAP*
Only Beer And Fine Grass Keep My Rattled Nerves Sane
Our Brother, A Footsoldier, Got Killed Monday
Oh Big And Ferocious Gorilla, Kill My Roommate Now.
Overseas broadcast: a flash! Godzilla kills Mothra!
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
56
Compilation of ECE Mnemonics
Only Bored Astronomers Find Gratification Knowing Mnemonics
Only Boys Advocating Feminism Get Kissed Meaningfully
Only Big Astronomy Federal Grants Keep Money. Research Needs Support!
Out Back A Friend Grows Killer Marijuana
Oiled Breasts Are For Giving Kinky Massages
Obviously Bill Always Felt Good Kissing Monica Lewinsky Tenderly
Oh Boy An F-Grade Kills Me
Oven Baked Ants Fried Gently Keep Moist
Mary Killed God For Atrocious Body Odor
The constellations of the zodiac:
A Tense Gray Cat Lay Very Low Sneaking Slowly Contemplating A Pounce
r a
e
a e
i
i
c
a
a
q i
i u
m
n o
r
b
o
g
p
u s
e r
i
c
g
r
r
i
r
a c
s u
n
e
o
a
p
t
i
r e
s
i
r
i
t
c
i s
o
a
o
u
r
r
s
i
n
u
s


As The Great Cook Likes Very Little Salt, She Compensates Adding Pepper. -Signs of the
Zodiac.
H.A. Rey's mnemonic for the zodiac, in his book The Stars: ram bull twins crab liverish, scaley
scorpions are good waterfish.
ram - aries
bull - taurus
twins - gemini
crab - cancer
li - leo
verish - virgo
scaley - libra (scales of justice)
scorpions - scorpius
are - sagitarrius (archer)
good - capricornus (goat)
water - aquarius
fish - pisces
This has a different starting place, and uses two or more initial
letters--except for taurus, which is easy to remember by "terrible":




AQUAmarine PIeces ARe Terrible GEMs, CAN LEO VIsit the LIBRAry and SCOpe-out the
SAGan CAPtions?
Anyone who wants to insert Ophiuchus can SCOpe-Out the sagan captions.
This is the list order of the 12 constellation of the northern hemishpere, beginning with Capricorn
which "crosses" January 1st, and is the first Constellation in the Winter quater.
'CAPtaiN AQUAR PICkS ARtillery TARgets, GENeral
LIBeRAtion,' SCOtty SAId."
CANfield LEads VIllaGe
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
57
Compilation of ECE Mnemonics
Capricorn Aquarius Pisces Aries
Scorpio Saggitarius
Taurus
Gemini
Cancer
Leo
Virgo
Libra
Stars
Here are some mnemonics to aid you in memorizing the stellar classification system for stars, OBAFGKM
which lists stars from hottest (most blue) to coolest (most red). The most famous mnemonic for this is due
to astronomer Henry Norris Russell, it goes
Oh Be A Fine Girl (Guy), Kiss Me







Here are some modern variations which you might find more memorable:
(the first is from our Arny textbook)
Only Brilliant, Artistic Females Generate Killer Mnemonics
Only Boys Accepting Feminism Get Kissed Meaningfully
Oedipus, Basically a Friendly Guy, Knew Mother
Obese But Alluring Fertility Goddess, Kiss Me
Our Best Answer For Government, Karl Marx
One Boy And Fifty Girls Kissed Madly
As for the planets, just pick one. Don't try to learn more than one.
Update: Astronomers have recently added two new letters to the stellar classification system, L and T.
Mostly these letters cover brown dwarf "stars" although part of the L classification also includes some
very low mass red dwarf stars. A couple suggestions I've received for the new OBAFGKMLT mnemonic
are:
Oh Be A Fine Girl, Kiss My Lips Tenderly*
Oh Be A Fine Girl, Kiss Me Like This
The Brightest Stars in the Sky
The brightest stars in the sky (excluding the Sun) can be remembered with this simple mnemonic:
Sir Can Rig A VCR, Pa!
The stand for: Sirius in Canis Major, Canopus in Carina, Rigil Kent in Centaurus, Acrturus in Bootes,
Vega in Lyra, Capella in Auriga, Rigel in Orion, Procyon in Canic Minor, Achernar in Eridanus
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
58
Compilation of ECE Mnemonics
ESAT
Principles of Communication
Wavelenght of Light?
Difficulties to remember that visible light shows a shorter wavelenght than infrared light and a longer one
than ultraviolet?
The "solution" is quite simple, because it is in "ultra violet" according to ultraviolet/visible/infrared!
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
59
Compilation of ECE Mnemonics
Modulation
ECE Reviewee Mnemonics AM/FM
inventor ng AM
-AUBREY MILES..as in REGINALD AUBREY "MILES" FESSENDEN
inventor ng FM
-baliktarin lang ang letters AM- Major Armstrong
or..
F=A
A=F
ang reference ung inventor sa kaliwang equation at sa kanan ung naimbeto or vice versa..
Fessenden = AM
Armstrong = FM
or vice versa..
MaLaZa ang Leg ni CeDa – Manila,Laguna,Zambaonga, Legaspi,Cebu, Davao
Radio Receiver & Noise
Mnemonic device
"ARMIDALA"
Explanation
Superheterodyne Receiver:
Antenna
Rf amp
Mixer
I.F. amp
Demodulator
Amp
L.O.
AGC
PN = kTB
Pinakataba...
C = Blog2(1+s/n), cholesterol = Baboy na Litson
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
60
Compilation of ECE Mnemonics
RF Spectrum Mnemonic with Radio Propagation
The letters with the green highlights are the 1st letters of the different ITU RF designations. (Ref: Page
17, Tomasi). In order for easy recalling of the different bands simply use this mnemonic : Every Very
Very Loving Mom Has Very Ugly Son Except I.
* Please take note that Voice Comes First before VLF*
Now In order for you to know the frequency just remember this Mnemonic: VHS at 3:30, kasi Ma Galing.
*Take note that the V in there stands fot Very Low Frequency, the kasi Ma Galing corresponds to the
frequency in kilohertz,megahertz and gigahertz respectively. The 3:30 signifies the frequency range for
these three.
Moving on, We will proceed to Wave Propagation Topic and its relationship with the spectrum. In order for
you to easily recall what wave describes what, simply familiarize yourself with the illustration and the
apply this Mnemonic: My Kilikili Has D Most Decent C Mill.
And then as a final note: Just Remember SKY is High Frequeny, Frequencies below Sky are Ground
and above the Sky is Space.


The EM Spectrum: Cary Grant eXpects Unanimous Votes In Movie Reviews Tonight Cosmic
Gamma X-rays Ultraviolet Visible Infrared Microwave Radio Television
The ordering of frequency bands of the radio frequency spectrum are remembered by
"Veronica Loves Manipulating Her Vagina Until She Explodes"
representing VLF, LF, MF, HF, VHF, UHF, SHF, and EHF.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
61
Compilation of ECE Mnemonics
Mnemonic device
Raging martians invaded Roy G. Biv using x-ray guns.
Explanation
The device used for remembering the waves from longest to shortest. Radio, microwave, infrared, visible,
ultraviolet, x-ray, gamma ray.
Mnemonic device
"Ray Michaels Irritated Roy G. Biv Using Extreme Games"
Explanation
Common members of the electromagnetic spectrum (light), from lowest to highest in energy: radio waves,
microwaves, infrared, visible light (red, orange, yellow, green, blue, indigo, violet), ultraviolet, X-rays, and
gamma rays.
ECE Reviewee Mnemonics Visible light wavelength in nanometer
Using ur phone keypad
PRO -- 770 red
MAC-- 622 orange
KYS--- 597 yellow
KRS--- 577 green
IWA--- 492 blue
ILL ---- 455 indigo
EX0---- 390 violet
Microwave Communication


eto para ma memorize mo ang Ku at Ka band
Ku---Unse 11 GHz yung Ka--katorse 14 GHz
"King Xerces Can Seduce Lovely Princesses" aids in remembering the microwave frequency
bands, in order of increasing wavelength.
ECE Reviewee Mnemonics Lage Sa CroXing KUmuKuha ng KAkantuting Vatang Wild
-or- “La Salle College X(times) Kuh Keh Kah Volks Wagen” - code for the communication band
L: 1-2
S: 2-4
C: 4-8
X: 9-12
Ku: 12-18
K: 18-27
Ka: 27-45
V: 45-70
W: 70-100
The Speed of Light
Remember this phrase and when you want to know the speed of light, count the letters in each word of
the sentence.
We guarantee certainty, clearly referring to this light mnemonic
299,792,458 m/sec
"My ingenious astronomy student remembers an easy light mnemonic"
(number of characters of a word = digit)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
62
Compilation of ECE Mnemonics
Telephony
And lastly, I've had to learn the U.S. Telephone companies' supposed standard for multiple-pair telephone
cables - up to twenty-five pairs in one cable. It's based on a '5 and 5' scheme; 5 base colors, 5 trace
colors, designating the 'Tip' and 'Ring' of each pair; First the Base color is used as the wire insulation, with
all the trace or stripe colors in their sequence, then the next base color is used, and the traces are
repeated. I'll try to do this;
"We Rape Beautiful Young Virgins, But Only Girls Beyond Sixteen"
This transposes to "White Red Black Yellow Violet" and "Blue Orange Green Brown Slate"
In a multipair cable, the first wire in the first pair is White, Blue tracer (called WH/BL) then the second wire
is Blue with White tracer (BL/WH). Next pair is White/Orange and Orange/White, next is White/Green and
Green/White, next White/Brown and Brown/White, and finally White/Slate and Slate/White. This takes
care of 5 pairs; the next 5 are Red with tracers Blue thru Slate, then 5 pairs of Black with tracers Blue thru
Slate. Pair 24 would thus end up as Violet/Brown//Brown/Violet, and pair 25 would be
Violet/Slate//Slate/Violet.
Mnemonic device
ReSePi - TAE
Explanation
Telephone Hierarchy:
Regional
Sectional
Primary
Tandem
End Office :)
Telecommunications
The 25-pair color code used for telephone wiring can be memorized using the following mnemonics:


Ring colors: Bell Operators Give Better Service
Tip colors: Why Run Backwards? You'll Vomit
ECE Reviewee Mnemonics Baby Orang-otan Grow Brown Since Wild Red Bear Yelled Violently
Restless Again & again
Fiber Optics Colors
1. Blue
2. Orange
3. Green
4. Brown
5. Slate
6. White
7. Red
8. Black
9. Yellow
10. Violet/Purple
11. Rose
12. Aqua
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
63
Compilation of ECE Mnemonics
Multi-Fiber Cable Color Code
Position
Jacket color
1
Blue
2
Orange
3
Green
4
Brown
5
Slate
6
White
7
Red
8
Black
9
Yellow
10
Violet
11
Rose
12
Aqua
13
Blue with black tracer
14
Orange with black tracer
15
Green with black tracer
16
Brown with black tracer
17
Slate with black tracer
18
White with black tracer
19
Red with black tracer
20
Black with yellow tracer
21
Yellow with black tracer
22
Violet with black tracer
23
Rose with black tracer
24
Aqua with black tracer
MNEMONIC: Blue Owes Great Britain Several White Rabbits Because Yellow Violated RA9292.
Notes:
1.The Mnemonic only describes the 1st 12 colors. Cables 13-24 have the same color sequence except
for Cable 20 which is Black with Yellow Tracer.
2.All have black tracers except Cable 20(duh!).
ECE Reviewee Mnemonics Multi-Fibre Cable Color Coding Scheme
from 1-12:
"Blue Owes GREat BRitain Several White Rabbits Because Yellow Violated R.A.9292"
(Blue Orange GREen BRown Slate White Red Black Yellow Violet Rose Aqua)
...
from 13-24:
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
64
Compilation of ECE Mnemonics
uulit lang ung taas pero laging may BLACK TRACER (for example, ung #22 is VIOLET WITH BLACK
TRACER) :D
ECE Reviewee Mnemonics Optical fiber 1-12 color coding: BlOG Bro'S Will Remain Black Yet Panda Rests Alot.
Then for 13-24. lagyan lang ng "and black stripe" lahat except dun sa black(#8), "and yellow" naman ung sa kanya
Data Communication
Order of Layer's on the OSI Data








Pa Dapa Na Tinira Si Pricilla Almeda
Pa Dapa Na Tinira Si Pamela Anderson
Please Do Not Take Susan's Pan Away
Physical Data-Link Network Transport Session Presentation Application
Phil's Date Now Thinks She Prefers Apples
Please Do Not Take Sales Person Advice
Please Do Not Touch Sally's Panties Again
(This can get a little confuseing if you say "Don't" instead of "Do Not")
Because the layers are numbered from the bottom-up, many mnemonics have been developed in both
directions, from the top-down and from the bottom-up.
Please Do Not Throw Sausage Pizza Away starts at layer 1 (the bottom),
as does Programmers Like Networks That Seldom Postpone Anything.
And for those who can't remember to say Do Not instead of Don't, we can go the other direction
(Application, Presentation, Session, Transport, Network, Data-Link, Physical)
All People Seems To Need Data Processing
Mnemonic device
Please Do Not Throw Sausage Pizza Away
Explanation
Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer,
Application Layer
Mnemonic device
Please Do Not Tell Sales People Anything
Explanation
Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer,
Application Layer
Mnemonic device
Please do not touch Steve's pet alligator
Explanation
Physical, datalink, network, transport , session, presentation, application
Mnemonic device
At
Present,
Some
Teachers
Need
Dr
Phil
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
65
Compilation of ECE Mnemonics
The OSI Model:
Application
Presentation
Session
Transport
Network
Data Link
Physical
Mnemonic device
Apple Touching Inter Nodes.
Explanation
Layer 4 -Application Layer 3 -Transport Layer 2 -Internet Layer 1 -Network Access
TCP/IP Layers For Networking.
ECE Reviewee Mnemonics Seven OSI Layer
Ava - APPLICATION
Pauline - PRESENTATION
Sa - SESSION
Tabi - TRASNPORT
Ni - NETWORK
Daniel - DATALINK
Pecaña – PHYSICAL
ECE Reviewee Mnemonics TCP/IP Protocol
(read from bottom to top)
Tapos - TRASNPORT
Nag-aral - NETWORK
Di - DATALINK
Pag – PHYSICAL
Sentences to remember the OSI-layers
A mnemonic for remembering the OSI model layers:
All
People
Seem
To
Need
Data
Processing
Application
Presentation
Session
Transport
Network
DataLink
Physical
or OSI from bottom up:
People Do Need To See Pamela Anderson
Met dank aan Wouter Sonneveld
or:
Please Do Not Tell Sales People Anything
Please Do Not Trough Sausage Pizza Away
Met dank aan An Coremans
Please Do Not Touch Steve's Pet Alligator
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
66
Compilation of ECE Mnemonics
IEEE 802 LAN Standard Numbers
802.3 - 3thernet
802.5 - 5oken Ring
802.11 - 11ireless LAN
Mnemonic device
HaLE To WiWi BroMM WRAN!
Explanation
802.1 - Higher LAN Layers
.2 - Logical Link Layer
.3 - Ethernet / CSMA / CD
.5 - Token Ring
.11 - Wi Fi
.15 - Wireless Personal Area Network
.16 - Broadband Wireless
.20 - Mobile Broadband Wireless
.21 - Media Independent Hand-off
.22 - Wireless Regional Area Network
ECE Reviewee Mnemonics IEEE 802.11 is WiFi kasi dalawang '1', dalawang 'i' :)
Mnemonic device
ICASEI Bata
Explanation
I-SO
C-CITT
A-NSI
S-CC
E-IA
I-EEE
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
67
Compilation of ECE Mnemonics
802 SERIES
802.1
802.2
802.3
802.4
802.5
802.6
802.7
802.12
802.13
Higher Layer LAN Controls/ Arcnet
Logical Link Control
Ethernet / CSMA/CD
Token Bus
Token Ring
Metropolitan Area Network (MAN)
Broadband Technical Advisory/
Broadband LAN (Coax)
Fiber Optic Technical Advisory/ FO Tag
Integrated Service LAN/
Integrated Data & Voice Network
Interoperable LAN Security
Wireless LAN
802.11 – Wi – Fi
802.11b - WLAN
Demand Priority
Not Used
802.14
Cable Modems
Ng KABLE
802.15
Wireless PAN
802.15.1- Bluetooth
Wireless Broadband Access
(Wi-Max)/ Wi-MAN
802.16.e- Broadband Wireless Access
Resilient Packet Ring
Radio Regulatory Tag
Coexisting Tag
Mobile Broadband Wireless Access
Media Independent Hand-off
Wireless Regional Area Network (WRAN)
At PANty
802.8
802.9
802.10
802.11
802.16
802.17
802.18
802.19
802.20
802.21
802.22
Ang AYALA
LIKOD
Ng SM
Sumakay ako ng BUS
Nahold-up aking RING
Dumating si superMAN
Na pinoy big BRO
Na Filipino
INdian
SECURE na kami
WaLA Ng
DEMonyo
Na nagnanakaw
Walang MANners!!!
Dinukot sa PoCKET
Ang RADIO
KO
BWIsit
Na KAMAY
TUMATAKBO
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
68
Compilation of ECE Mnemonics
Broadcasting and Acoustic
Rainbow Color:
The name Roy G. Biv helps us to remember the order of the colors in the spectrum. In England "Richard
Of York Gave Battle In Vain" is popular (Red, Orange, Yellow, Green, Blue, Indigo, Violet). In an alternate
version, "Battle" is replaced with "Birth". It is interesting to note that many modern scientists no longer
consider Indigo to be a part of the rainbow.

the colours of the rainbow Virgin In Bed Gives You Orgasmic Release
For : violet, indigo, blue, green, yellow, orange, red.




Virgin In Bed: Get Your Organ Ready!
Rip Off Your Goolies Before I Vomit
Asimov essay: Read Out Your Good Book In Verse
He also said that since Violet was just a fancy-schmancy word for purple, more populistic minded
people could also
Read Out Your Good Book In Prose
Mnemonic device
ROY G. BIV Richard Of York Gave Battle In Vain Reports Of Young Girls Banging Inside Vatican
Explanation
Red, Orange, Yellow, Green, Blue, Indigo, Violet : the colors of the rainbow, in order.
Mnemonic device
Richard Of York Got Buggered In Venice
Explanation
Colors in order. Red, orange, yellow, green, blue, indigo, violet.
Mnemonic device
Roy G. Biv
Explanation
Color spectrum - Red, Orange, Yellow, Green, Blue, Indigo, Violet
Television colour bars
Television colour bars in order of brightness:
White, Yellow, Cyan, Green, Magenta, Red, Blue, Black
When You Catch German Measles Remain Between Blankets
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
69
Compilation of ECE Mnemonics
ECE Reviewee Mnemonics Philo Farnsworth - Father of Television
Edwin Armstrong - Father of FM (not Neil Armstrong ok?)
Mnemonic device
Crazy Cats will drive through fences
Explanation
laser printing process.
cleaning, conditioning, writing, developement, transfering, fusing.
Transmission Lines
Standing Wave Ratio
Mnemonic
4 swear.. 1 + swr swear.. P I
Formula
4SWR/(1+SWR)^2 * Pi
The Earth’s Atmospheres
Wave Propagation & Antenna
Here is a phrase to help you remember the order of the earth’s atmospheres:
The Strong Man’s Triceps Explode
This stands for: Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere.
Mnemonic device
The Straight Man's Testicles Exploded
Explanation
Thermosphere Stratospher Mesosphere Troposphere Exosphere(layers of the atmosphere from earth's
surface outward)
Mnemonic device
The Stupid Monkeys Tattled on Elephants
Explanation
Layers of the earth's atmosphere--Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere
Mnemonic device
Tonight Snakes Make Tea
Explanation
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
70
Compilation of ECE Mnemonics
The levels of the atmosphere:T - TroposphereS - StratosphereM- MesosphereT- Thermosphere
Navigational Aids & RADAR

To aid my recollecting the direction of increasing position angle (it is measured from North,
sweeps through the East cardinal point, then South, then West), I always recite the following:
Never eat Shredded Wheat.
(And, no, this is not a personal vendetta against the Nabisco Company.)

To convert between Grid north and magnetic north on a map, use: East is least, West is best.
If the magnetic variation is, say, 3 degrees west, add 3 onto the grid bearing to obtain a magnetic
bearing. And vice versa.

Can Dead Men Vote Twice
Compass (reading)
Deviation (ship's magnetic field error)
Magnetic
Variation (earth's error)
True (course)
Mnemonic device
PORT is a red wine and red is the left side of politics. Red Left Port. There´s always some red
port (wine) left.
Explanation
To remember the names of a ship's side and the light colour of each side
Mnemonic device
East is Least, West is Best
Explanation
Sunrise and set
Mnemonic device
Never Eat Slimy Worms
Explanation
All compass directions of the wind; north east south west
Mnemonic device
naughty elephants spray water
Explanation
North East South West
Mnemonic device
never eat shreaded weat
Explanation
compass points going clock-wise
very clever and easy
Directions of the Compass
Never Eat Shredded Wheat
Never Eat Slimy Worms
Never Eat Soggy Waffles
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
71
Compilation of ECE Mnemonics
Never Eat Sour Watermelon
N
W
E
S
Mnemonic device
Red on right, returning
Explanation
Red on right, returning, except in U.S. coastal waters which are the exact opposite. ie, when returning to
port, the red buoys should be on the right side (starboard) of the boat, unless in U.S. coastal waters when
they should be on the left. Gotta watch those international boarders, or you could run aground. The united
states uses a bouy system the opposite of the rest of the world. Maybe they hope the enemies don't know
and will run aground.
Mnemonic device
PORT has four letters
Explanation
just like LEFT. The left side of the ship is PORT
Mnemonic device
The "E" in west rhymes with the "E" in left.
Explanation
If north is known west is always to the left
Mnemonic device
Nautical: Can dead men vote twice at elections; or, True virgins make dull companions, add
whiskey
Explanation
To correct a magnetic compass to true or a true compass to magnetic
Mnemonic device
NEVER EAT SLIMY WORMS
Explanation
north, south, east, west
Mnemonic device
Never Eat Shredded Wheat
or
Never Ever Smoke Weed
Explanation
The order of the cardinal directions
Conversion of magnetic to true heading
Can Dead Men Vote Twice (At Elections)?
for: Compass + Deviation = Magnetic + Variation = True (Add for East corrections):
Timid Virgins Make Dull Company (After Weddings)
for: True + Variation = Magnetic + Deviation = Compass (Add for West corrections):
1.
2.
3.
4.
5.
Emergency Communication
Emergency Communication
Contents of an emergency transmission: PAT HAS ATNIE :
Mayday mayday mayday or pan-pan pan-pan pan-pan
Callsign of aircraft
Position And Time
Heading And Air Speed
Altitude
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
72
Compilation of ECE Mnemonics
6.
7.
8.
9.
Type of Aircraft
Nature of Emergency
Intentions of Captain
Endurance Remaining
Alternatively MIPDANIO
Mayday
Identification
Position
Distress (eg. Fire, Collision etc)
Assitance Required
No. of people onboard
Information (eg. abandoning to liferaft)
Over
Transportation

Marine
The phrase "there's always some red port (wine) left" is used to remember the basics in
seafaring.







Aviation
pre-landing: GUMPS - Gas, Undercarriage, Mixture, Propeller, Speed.
pre-final: MARTHA - Missed (procedure), Altitude (limit), Radios (set), Time (limit), Heading
(final), Airspeed (descent)
pre-high-altitude - FLOWER - Flow (enabled), Lights (test), Oxygen (charged), Water
(humidity), Electricity (on), Radio (check)
pre-flight-paperwork - ARROW - Airworthiness (certificate), Registration, Required
(charts), Operating (checklists), Weight and balance
night collision avoidance: Red, Right, Returning - Red nav light on Right implies target is
Returning (closing)
radio loss Instrument course - CDEF - as Cleared, else Direct to last fix, else as directed
to Expect, else as flight plan Filed
spin recovery - POKER - Power (off), Opposite (full rudder), Klean (flaps, ...), Elevator (briskly
forward), Recover (from dive)
Airplane Airworthy?
What evidence can you provide that the airplane that we're about to fly is airworthy?
Answer: "Tape-Arow"
Transponder inspection (every 24 months) - Annual inspection - Pitot static check (every 24 months) ELT check (yearly)
Airworthiness inspection - Registration - Operating limitations - Weight & balance
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
73
Compilation of ECE Mnemonics
Indicated Airspeed to True Airspeed
ICE-T
Indicated Airspeed - what you see from the pitot tube, air-pressure reading
Calibrated Airspeed - airspeed after accounting for mechanial and position errors (attitude) of the aircraft
Equivalent Airspeed - airspeed after compensating for compression effects (usually need at speeds
above 200 MPH)
True Airspeed - airspeed after accounting for tempature and amospheric pressure changes
Basic instruments and equipment VFR flight
What basic instruments and equipment must be on any airplane for VFR flight?
Answer: "Goose-a-Cat"
Gas gauge - Oil pressure - Oil temperature - Seatbelts - Airspeed indicator - Compass - Altimeter –
Tachometer
Checklist for Takeoffs
Controls
Instruments
Gas
Altitude indicator
Radio
Instruments for IFR flight?
What instruments are required for IFR flight?
Answer: "Hac-a-Rat"
Heading indicator - Adjustable altimeter - Clock - Attitude indicator - Radios - Alternator/generator - Turn
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
74
Compilation of ECE Mnemonics
coordinator
Potential Evacuation of a Commercial Flight
To help the crew members recall what to say to the captain
TEST
Type of emergency (equipment malfunction, fire, terrorism)
Evacuation (yes or no)
Signal to be given by the captain (oral, alarm, lights)
Time (number of minutes till evacuation)
Pre-landing Checks
In UK aviation, BUMPH is a mnemonic for the pre-landing checks carried out by pilots of light aircraft
when approaching an airport with intention to land.
BUMPH is an acronym for
Brakes - unlocked so that wheels are free to rotate on touchdown
Undercarriage - down and locked (or welded in the case of fixed-gear aircraft)
Mixture - set full rich (or as appropriate to temperature and altitude)
Propellor - set full fine pitch (when a variable pitch propellor is fitted)
Hatches (and Harnesses) - secured.
The Four C's for Emergencies in Flight
Confess the
predicament to a
ground radio station.
Communicatie with
the ground radio link.
Climb in altitude, if
possible, for better
radar and direction
finding.
Comply with the
advice and
instructions received.
Here are some handy mnemonics that pilot use to help verify the
completion of certain tasks. Of course, conscientious checklist
usage should be primary, but these can also help.
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
75
Compilation of ECE Mnemonics
CIGAR
C
I
G
A
R
LCA
LIGHTS
CAMERA
ACTION
Runup/Ground Check
controls check
instruments set
gas (proper tank, pump on, etc)
attitude (flaps, trim, etc.)
runup
Before Takeoff
strobes, navs, landing
transponder (so ATC can "see" you)
any other actions to be performed like boost
pump on, control checks, flaps and trim set,
etc.
BLITTS
B
L
I
T
T
S
Line-Up Check
boost pump on
lights as required
instruments set
transponder on
takeoff time noted
seat, belts, doors secured
FLARE
F
L
A
R
E
Enroute
flaps set (if extended during takeoff)
lights as required
auxiliary fuel pump off (if on for departure)
radar transponder on
engine (lean mixture when at altitude)
GUMPS
G
U
M
P
S
Before Landing
gas (proper tank, pump on or off, etc.)
undercarriage
mixture set
prop set and/or primer in/locked
switches (lights, pitot heat, etc.)
Note: add C in front of GUMPS for carb heat (becomes
"Charlie GUMPS")
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
76
Compilation of ECE Mnemonics
MPG
M
Before Landing
mixture set
P
prop set
G
three green (gear down)
CCCC
C
C
C
C
Go Around
cram it (full throttle)
clean it (flaps up)
cool it (cowl flaps)
call it (make radio call)
Note: if your aircraft has carb heat rather than cowl
flaps, use that for "cool it."
FACTS
F
After Landing
flaps up
A
auxiliary fuel pump off
C
T
S
cowl flaps
transponder standby
switches (pitot heat, lights, etc.)
FLARE
F
After Landing
flaps up
L
lights as required
A
R
E
auxiliary fuel pump off
radar transponder standby
check for ELT activation
MIDGET
M
After Landing
master off
I
ignition off
D
doors/windows locked
G
E
T
gust lock installed
ELT off
tiedown plane
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
77
Compilation of ECE Mnemonics
TTTTTT
T
(IFR) Crossing a Fix / Approach
turn to proper headnig
T
time hold or approach
T
T
twist OBS knob to inbound course
throttle adjustments, as required
talk - procedure turn inbound, entering the
hold, etc.
T
WIRETAP
(IFR) Nearing Destination
Weather (AWOS, ATIS, ASOS, etc.)
W
instruments set
I
R
E
T
A
P
radios tuned
elevation (check final approach fix altitude)
talk to ATC
altitudes for decision height or minimum
descent altitude
procedure for missed approach
APTATEN
(IFR) I tems in Sequence
aircraft identification
A
P
position (name of fix)
T
A
T
E
N
time crossing fix
altitude
type of flight plan
ETA at next reporting point
name of next reporting point
HAMSACC
(IFR) Required Reported Items
holding (time and altitude)
H
altitude changes
A
M
S
A
C
C
missed approach
safety of flight (if anything affects it)
airspeed changes (of 5% or 10kts)
communication or navigation capability loss
climb rate (when unable to maintain 500fpm)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
78
Compilation of ECE Mnemonics
Satellites
ECE Reviewee Mnemonics Satellites
Moon - Mr.
Sputnik 1- Sex
Explorer - Expert
Spore - Scores
Echo - Every
Carrier - Chatmate
Telstar 1 - Tuesday
Telstar 2 - Thursday
Syncom - Saturday
Intelsat - In the
Early Bird – Evening
According to CNN, Diwata-1 (also known as PHL-Microsat-1) launched
into space on board an Atlas V rocket on Wednesday (March 23. 2016) at
around 11 a.m. PHT.
Mnemonic: She’s Diwata-1, She’s Da 1 (one)
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
79
Compilation of ECE Mnemonics
NOTE: This compilation is not intended as a substitute for the review and refresher. The reader should
regularly attend his/her class on its review center relating to any ECE board exam topics and particularly
with respect to any comprehensive collection of techniques. They may also buy review books from
different review centers to aid their review needs.
Such allusive and colloquial green mnemonics here are not intended to be witty or extravagant, but
intended to assist eade ’s e o y as o e of the study techniques for remembering anything more
easily.
Nevertheless, this is also a compilation that was searched and shared by different people and
organizations. A huge thanks to them.
Good luck to all reviewees and enthusiast.
To God be the glory!
Need ECE/ IT-related job with competitive salary? You may send your updated resume to me via jemgentiles@gmail.com.
80