Welcome to Mrs. Sauder’s
Physics Class!
• Pick up purple, green, & yellow piece of paper at front of
the room.
• Read the notecards from last years’ students
• PURPLE CARD: Quick reference, You keep this.
• GREEN CARD: PRINT your name in first blank. Your
desk number is your calculator number. Sign and date.
Have your folks sign and date this eve. Include your
period. Return no later than Thursday.
• Yellow SAFETY REVIEW SHEET: This will be due on
Wednesday Sept 2. You may begin working on this
while waiting for class to start. A Class Copy of the
Safety Rules (code for DO NOT REMOVE FROM MY
ROOM) is located beneath your desk. These copies will
be there all week. The Safety Rules are also posted on
my webpage.
OPENING DAY SCAVENGER
HUNT
• When your are completed, you must show
me so I can check you off. Then take a
seat.
END OF CLASS
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Place pink Safety Sheets under desk
Answer puzzle question
Remind student‘s of HW
Recommend Grade Book Access
Answer any questions
Have student’s log on to remind
Remind 101
PHYSICS
• Text to 81010
• Send this message @18ca09
• (THE @ symbol is missing on the yellow
sheet)
• Don’t write this down….the information is
on the purple card
Syllabus and Policies
• Supplies
– Pencil, pens, & paper
– Folder, spiral, or 3 ring binder
– Scientific Calculator at home
The policies and syllabus are on my website. Check it
out, have your folks check it out. Filling out the Safety
Contract indicates the policies and safety have been
read. Have this signed by Thursday 9/27. If you do not
have internet at home, see me after class.
What about books?
• Tardies
Expectations
– Door closes at bell. You will need to go to office across the hall to get
admit slip. (Exceptions: 1st & 5th period tardies go to cafeteria tardy
station)
• Digital Toys
– Put them away unless we are using them. I will take them up.
• Leaving classroom (RR or for other reasons)
– Sign on clipboard indicating time out/in & where you are going.
– Place phone inside clipboard.
• Classroom decorum
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Politeness
Preparedness
Honesty
See and Do!!!!
Don’t sharpen pencils when I am speaking
Put stuff away (chairs, lab supplies, trash)
This is not a restaurant. NO FOOD or DRINKS
Don’t lose your papers: one copy only
Stay seated until I dismiss you
• When you have been absent…….
• I expect you to check my web page and
see what you have missed.
• Paperwork is in mailbox at back of room
Just so you know……
I am not your mother.
I am not your maid.
I am not your secretary.
Be responsible for you.
This is what I will do for you….
Awesome lectures
Relevant labs
Assign homework!!!!!!!! This is so you can
practice your new found skills ☺
Website support
Tutoring, Make Ups, Retakes:
Monday-Thursday after school
(I leave the building at 3:30)
Never Friday after School
Mornings by appointment.
Finally
• Test days are Wednesday or Friday
• The only extra credit offered are BOPS
(bonus opportunity points)
• See my WebPage
safety
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Show video
AGHS Lab Safety Rap - YouTube
Safety Review-Due Wed 9/2 BOC
Safety Contract-On WebSite-Must sign on
line
• Fire Drills and phone policy
8/25: Game Plan
• Sit in your assigned seats
• Pick up Math Review and Purple Folder
• Purple Folder should have the Pink Safety
Sheet. This folder is for CLASS COPIES.
If there is student work in there, please
bring to me. 
• Begin Math Review
• Turn in calculator contracts (green card) to
blue sorter (file under first letter of your
last name)
Measurement….looking for
relationships
Order of Operations
• When there is more than one operation
involved in a mathematical problem, it
must be solved by using the correct order
of operations .
• Remember, calculators will perform
operations in the order which you enter
them, therefore, you will need to enter the
operations in the correct order for the
calculator to give you the right answer.
PLEASE EXCUSE MY DEAR AUNT
SALLY
or just
P.E.M.D.A.S.
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
OOO Practice Problems
1. 18
2x3
=
2. 2[14 – 32] =
OOO Practice Problems
1.
18
(2 x 3) =
18
6
=
3
OOO Practice Solutions
2.
2[14 – 32] =
2[14 – 9] =
2[5] =
= 10
Isolating Variables
• Work backwards to isolate a
variable.
Isolating Variables Practice
3. 6 = 18a
a=
4. F = ma
a=
5. d/t = v
t=
6. 8 =16/x
x=
7. d = 1/2at2
t=
Isolating Variables Practice
Solutions
3.
4.
5.
6.
7.
0.33
F/m
x/v
2
√d/.5a
Why Scientific Notation?
• It makes it easier to work with very large
and very small numbers.
Given the following: 2.00 x
4
10
• The first part is called the coefficient (the 2.00).
• The second is called the base (x 10) and
exponent (4).
• Proper scientific notation requires the coefficient
to be between 1 and 9. The base is always x10.
If the exponent is positive, the number is greater
than 1 and the decimal is moved to the right as
many times as the exponent to convert to
standard form.
• If the exponent is negative, the number is less
than 1 and the decimal is moved to the left as
many times as the exponent to convert to
standard form.
Record the following in
Scientific Notation
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685,003 kg
6.85 x 105 kg
407,501,000 sec
4.08 x 108 sec
0.00621 m
6.21 x 10-3 m
0.00000000697 N
6.97 x 10-9N
Record the following in
Standard Form
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4.35 x 106 m
4,350,000 m
2.19 x 103 N
2,190 N
2.19 x 10-3 kg
0.00219 kg
4.57 x 10-6 s
0.00000457 s
Metric Mania
• Using metric makes math easy!
Which is larger?
A. 1 millimeter
B. 1 centimeter
How many meters in a kilometer?
A. 10 or 101
B. 100 or 102
C. 1000 or 103
How many grams in a milligram?
A. .10 or 10-1
B. .01 or 10-2
C. .001 or 10-3
How many centimeters in a meter?
A. 10 or 101
B. 100 or 102
C. 1000 or 103
What’s bigger an inch or a
centimeter?
A. inch
B. centimeter
What units would be used to
measure the distance from here
to Dallas?
A.
B.
C.
D.
cm
mm
km
m
In Physics these are the most
prevalent units of length used
• cm, mm, km or m
KHD___dcm
• GXXMXXKHD___dcmXXμXXn
Prefixes
Metric Mania WS optional
Look at the ladder
If you are going down the ladder
you add places (ie move the
decimal right)
If you are going up the ladder you
subtract places (ie move the
decimal left)
8/26
Get your calculator.
Pick up 3 pages at the front desk.
On your Warm Up Sheet (Record Date in
first section)
Write:
12/x = 24 and solve for X
How may seconds are there in the
month of August?
• PROVE IT!!!!!
Dimensional Analysis
• Used to convert between different
units of measurement
• This is done by multiplying by
factors of 1
The real meaning of MPH- The OriginalTCHappenings - YouTube
Converting up on down the metric
system using dimensional analysis
• What do you have?
• What do you want?
• Is your answer going to be larger or
smaller than the starting number?
• What do you know?
• Remember you must be able to cancel out
all units except the one you want to end up
with
Step 1
• Write down the number and unit
that you are starting with
Step 2
• Find out how to arrive at your final
unit by using known conversion
factors
Step 3
• Set up your conversion factor so
that the units cancel
Example
• Convert 5 m into km:
Step 1: you start with 5 m
Step 2: you need to get to km
Step 3: you know that: 1km = 1000 m
Step 4:
5m
X
1km =
0.005m
1000 m
**Always multiply every number across the top
,then multiply every number across the bottom.
Finally divide the product of the top by the
product of the bottom. Record number and unit.
Convert 3 years to hours
3 years
1
Convert 3 years to hours
3 years
1
365 days
1 year
24 hours
1 day
Convert 3 years to hours
3 years
1
365 days
1 year
26280 hours
24 hours
1 day
• For the next example
• 1 km = 0.621 mile
• 1 hr = 3600 s
8/27
Get your calculator.
Yesterday you received Warm Up Sheet, DA
WS, & Conversion Chart. If you were
absent go to mail box and find them under
the Pink Sign
NOW: Warm Up #2 (Record Date in 2nd
section)
Convert: 4.25 x 104 nm to km using DA
Format (1 m = 1 x 109nm)
Reminders:
Quiz Next Tuesday (Safety & DA)
Test next Wednesday (Safety & DA)
Have you got on Remind?
Enter this number 81010
text @18ca09
Tutoring
AP Student Help Sign Up
Did we finish 75 mph question?
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1.
2.
3.
4.
5.
3.15 x 107 sec
18 weeks
1.7 x10-3km
8.40 x 10-5kg
26.53 m
Convert 75 mph to m/s.
Convert 75 mph to m/s.
75 mi
hr
Convert 75 mph to m/s.
75 mi
hr
1 km 1000 m
0.621 mi 1 km
1 hr
3600 s
Convert 75 mph to m/s.
75 mi
hr
1 km 1000 m
0.621 mi 1 km
33.55 m/s
1 hr
3600 s
Convert 42500nm to km
Convert 42500 nm to km
I find it easier to go nm>m>km 
4.25 x 104 nm
1
Convert 42500 mm to km
I find it easier to go nm>m>km 
4.25 x 104 nm
1
1m
1 x 109 nm
Convert 42500 mm to km
I find it easier to go nm>m>km 
4.25 x 104 nm
1
4.25 x 10-8 km
1m
1 x 109 nm
1km
1000m
EX A. A domino has dimensions of 0.5 cm x 2
cm by 4 cm. The mass of the domino is 83
grams. Determine the density in g/cm3 of the
block.
Soooo…. You want an answer ending with
grams on top and cm3 on the bottom
Hint: cm3 is a measurement of ? Can you
determine this with the info given?
A domino has dimensions of 0.5 cm x 2 cm by 4
cm. The mass of the domino is 83 grams.
Determine the density in g/cm3 of the block.
83 g
(.5 cm x 2cm x 4 cm)
ANS: 20.75 g/cm3
EX B: Teagan ran a 10 km race in 48 minutes.
What was her speed in miles/hr?
Teagan ran a 10 km race in 48 minutes. What
was her speed in miles/hr?
10 km
48 min
Teagan ran a 10 km race in 48 minutes. What
was her speed in miles/hr?
10 km
48 min
ANS: 7.76 miles/hr
0.621 mile
1 km
60 min
1 hr
Ex C Hunter puts his cruise on 63 mph. How far
in km does he travel in 3.5 hours?
Hunter puts his cruise on 63 mph. How far in km
does he travel in 3.5 hours?
3.5 hrs
1
Hunter puts his cruise on 63 mph. How far in km
does he travel in 3.5 hours?
3.5 hrs
1
ANS: 355.07 km
63 miles
1 hr
1km
0.621mi
8/28 It’s Friday, It’s
Friday!
• Get a calculator
• Pick up all 3 pages at front
• The short dim analysis ws is what we are working
on today
• The long dim analysis ws is your review for next
Thursday’s test. There will also be safety
questions on the test.
• NOW: If you have 6,230 cm, how many
– Km?
– mm?
– Dm?
Be Safe, Be Sensible
DIMENSIONAL ANALYSIS
AND SAFETY TEST