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Physical Science - Electricity
Test Description: Electricity consists of static and moving electric charges.
Instructions: Answer all questions to get your test result.
1) ____________ charges repel each other.
A
great
B
like
C
unlike
D
small
2) Charge can be transferred from object to object, but it cannot be created or destroyed. What law is this?
A
Gravity
B
Law of conservation of charge
C
1st law of thermodynamics
D
Law of conservation of mass
3) An electric ___________ is a flow of electric charge.
A
resistance
B
atom
C
electron
D
current
4) A device that can detect electric charge is called an _______.
A
electric wire
B
electroscope
C
elliptical
D
electric powerscope
5) A material in which electrons move easily is called a(n) _____________.
A
insulator
B
thermometer
C
conductor
D
ohm
6) Electric current is measured in ___________.
A
volts
B
amperes
C
joules
D
watts
7) In Ohms law, I stands for ______.
A
initial velocity
B
time
C
instrumentation
D
electric current
8) The rate at which electrical energy is converted to another form of energy is called __________.
A
velocity
B
voltage
C
power
D
parallel
9) Fuses and circuit breakers are used to in houses to prevent wires from ___________.
A
stopping
B
disappearing
C
overheating
D
working properly
10) ______ = IV
A
A
B
P
C
W
D
T
*select an answer for all questions
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