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Electricity Review
Test Description: Reviewing for G9 Electricity Test
Instructions: Answer all questions to get your test result.
1) Electricity produced in a generator where the current flowing from the generator changes direction regularly
A
Wind
B
AC
C
DC
D
Solar
2) an instrument used to measure large currents
A
ohmmeter
B
voltmeter
C
ammeter
D
galvanometer
3) acts as a switch and safety device that can cut all power coming into the home
A
series circuit
B
circuit breaker
C
corrosion
D
parallel circuit
4) current that flow in one direction
A
Solar
B
Nuclear
C
AC
D
DC
5) the ratio of the useful work or energy provided by a machine with the actual work or energy supplied to the machine
A
Resistance
B
Effficiency
C
Power
D
Voltage
6) a strong temporary magnet, created by inserting a soft iron core into a coil of wire and then passing a current through the wire.
A
electrical induction
B
ferromagnet
C
magnetic indiction
D
electromagnet
7) Current is the measure of
A
how hard electrons must be pushed to go through a circuit
B
how much the ciruit will shock you
C
how much electrons are slowed down in a circuit
D
how fast electrons pass through a circuit
8) An example of electrical discharge is
A
moving your eyes
B
clapping your hands
C
shocking your friend
D
stomping your feet
9) Water can conduct electricity
A
Yes
B
False
C
I don't know
D
True
10) an instrument used to measure weak currents
A
voltmeter
B
ammmeter
C
ohmmeter
D
galvanometer
11) Connecting an object to Earth to rebalance the charge is to...
A
Discharge
B
Charge
C
Ground
D
Disperse
12) Carries high energy electricity
A
Hot wire
B
Ground wire
C
Live wire
D
Neutral wire
13) any material in which the charge does not pass through
A
Distributor
B
Transformer
C
Insulator
D
Conductor
14) any material that allows charges to move freely
A
Insulator
B
Conductor
C
Distributor
D
Transformer
15) Unit of Voltage
A
Ohm
B
Joule
C
Amp
D
Volt
16) Unit of Current
A
Amp
B
Ohm
C
Volt
D
Joule
17) Unit of Resistance
A
Volt
B
Joule
C
Ohm
D
Amp
18) Unit of Energy
A
Volt
B
Ohm
C
Amp
D
Joule
19) Which is false
A
Electrons follow the path of most resistance
B
Unlike charges attract
C
Charged objects attract uncharged objects
D
Like charges repel
*select an answer for all questions
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