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