Electronics I
Periods 3, 11/12, 13 (Mr. Ziegler)
Midterm Review 2003-2004
Exam Review Sheet
Midterm Exam dates: Tuesday January 20th through Friday January 23rd, 2004.
At least two #2 pencils are required for the SCANTRON and exam consisting of: Multiple Choice,
True/False, Essay, Short Answer, and/or Fill-in the Blank Questions.
To prepare for this exam:
I.
Review notes from lectures taken from the main text “DC Electronics”:
a. Unit 1-3 thru 1-9, Composition of Matter
b. Unit 8-14 thru 8-24, Capacitance
II.
Review notes from Electronics Kourse Institute (EKI) lessons EDL 1 thru 3:
a. “Basic Electronic Theory”
b. “Resistor Color Code”
c. “Solderless Circuit Board”
III.
a.
b.
c.
d.
e.
f.
g.
h.
i.
IV.
V.
Review notes from Electronics Kourse Institute (EKI) lessons LPA 1 thru 9:
“How A Resistor Works”
“How A Potentiometer Works”
“How A Photocell Works”
“How A Capacitor Works”
“How A Speaker Works”
“How A Diode Works”
“How A SCR Works”
“How A NPN Transistor Works”
“How A PNP Transistor Works”
Review notes and / or handouts from the following video: “Tesla – Master of Lightning”
Recall terms, definitions and formulas from texts, lectures, demonstrations, marker board
presentations, Internet research, work sheets, handouts, lab exercises, projects, overhead
transparencies, videos, quizzes, tests, and so on (see the following list:)
a. “Elektron” (with a “k”) = Greeks in 600 BC found amber from conifer trees repels “negative” objects
b. Greeks in 600 BC also discovered that glass repels “positive” objects
c. Two amber stones rubbed with fur repel each other because they are both “negatively charged”
d. Two glass balls rubber with wool repel each other because they are both “positively charged”
e. One charged glass and one charged amber ball attract each other because they have “opposite charges”
f. Coulomb’s Law = Like Charges Repel, Unlike Charges Attract
g. Ben Franklin proposed the “Fluid Theory of Electricity” (Electricity flows from positive to less-positive”
h. Democritus in 500 BC proposed the “Atomic Theory” (matter can’t be divided beyond the size of atoms)
i. J. J. Thompson in 1879 discovered the “Electron” (negative because they are repelled by amber)
j. The Electron (spelled with a “c”) is the smallest known negatively charged particle (can’t be divided)
k. Ernest Rutherford in 1910 discovered the “Proton” (positive because they are repelled by glass)
l. A Proton is 1840 times heavier than an Electron
m. James Chadwick discovered the “Neutron” in 1932 (completing the “Nuclear Theory”)
n. A Neutron has a neutral charge and about the same atomic mass as the proton
o. Protons and neutrons make up the nucleus (center) of an atom and Electrons orbit the nucleus
p. Murray Gell-Mann and a team of scientists discovered “quarks” in 1977 (make up Protons & Neutrons)
q. All elements such as gold or silver depend upon the numbers of protons, neutrons, & electrons
r. Atomic diagrams show 3-dimensional atoms in 2-dimensional form as a “bulls-eye” pattern
s. The 2-dimensional “bulls-eye” pattern depicts a nucleus at the center and electrons orbiting
t. The Law of Charges and the Law of Gravity balance electron orbit Centrifugal Force and Orbital Speed
TERMS:
Alternating Current
Amp (A)
Ampere (A)
Anode
Atom
Attract
Battery
Battery Snap
Bohr Model
Capacitor
Capacitor Plates
Cathode
Centrifugal Force
Ceramic Capacitor
Charge
Closed Circuit
Color Code of Resistors
Component
Compound
Conductor
Connected
Coulomb
Coulomb’s Law
Current
Depletion Layer
Direct Current
Directly Proportional
Disconnected
Discharge
Doping
E (Volts)
E = IR
Electrical Charges
Electrical Fields
Electricity
Electrolyte
Electrolytic Capacitor
Electromotive Force (EMF)
Electron
Electron Flow
Electronics
Element
Energy
Fields
Flow of Electrical Charges
Fluorescent Lights
Force
Free Electrons
Gate
Gravity
Holes
Hydroelectric Power
I (Amps)
I=E/R
Insulator
Inversely Proportional
Ions
Kilo
Kinetic Energy
Law of Charges
Law of Gravity
Lead – Acid Battery
Lead (pronounced “led”)
Lead (pronounced “leed”)
Lethal
Light
Light Emitting Diode
Light Variable Resistor
Lightning
Like Charges
Load
Magnet
Matter
Mechanical Engery
Misconnected
Molecule
Multiplier Band
Negative
Negative Material
Negative Terminal
Negatively Charged
Neutron
Nikola Tesla
NPN Transistor
Nucleus
Ohm
Ohm’s Law
Ohm’s Law Circle
Ohms (R)
Open Circuit
Orbit
Orbital Shell
Orbital Speed
P/N Junction
Parallel Circuit
Periodic Table of Elements
Phosphorescent Lights
Photocell
Pictorial Symbol
Plasma
Plates
PNP Transistor
Polarity
Positive
Positive Charged
Positive Material
Positive Terminal
Potential Difference
Potential Energy
Potentiometer
Power
Proton
Pump
R (Ohms)
R=E/I
Radio Control
Repel
Resistance
Resistor Color Code
Resistor Tolerance Band
Schematic Diagram
Schematic Symbol
Semiconductor
Series
Series Circuit
Series Resistance
Shock
Short Circuit
Silicon
Silicon Controlled Rectifier
Silicon Wafer
Solder
Speaker
Speaker Cone
Stored Electrical Charge
Substrate
Switch
Symbol
Terminal
Tesla
Tesla Coil
Thomas Alva Edison
Tin
Tin The Tip (TTT)
Tin-Lead Content (TLC)
Tolerance Band
Transistor
Transistor Base
Transistor Collector
Transistor Emitter
Unlike Charges
V (Volts)
Valence Electrons
Valence Shell
Variable Resistor
Voltage Source
Volts (V)
War of the Currents
Watts
X-rays (Shadow)