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