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Electricity
Test Description: Electricity Review
Instructions: Answer all questions to get your test result.
1) The flow of electricity to motors, lights, and other devices is called?
A
voltage
B
resistance
C
current
D
power
2) Anything that uses electrical energy is called a _________.
A
heater
B
resistor
C
electronic
D
lightbulb
3) A closed circuit:
A
is on
B
is off
C
Has a break in it
D
requires more voltage.
4) Water pipes can be compared to which part of an electrical circuit?
A
resistors
B
switch
C
battery
D
wires
5) Which of the following creates an open circuit?
A
Turning off a switch
B
adding a battery
C
All of these
D
Using a solar cell
6) Current in circuits refers to:
A
energy loss
B
resistance
C
flowing electron
D
potential difference
7) A device that converts chemical energy into a voltage difference is a(n):
A
voltmeter
B
battery
C
ammeter
D
resistor
8) Current is measured in:
A
ohms
B
volts
C
amperes
D
joules
9) a voltage difference:
A
causes a short circuit
B
supplies the energy to make a charge flow
C
wastes energy.
D
is the term for the rate of charge flow
10) Which of the following is a good analogy for a battery?
A
a water faucet.
B
water pipes
C
water tower and pump
D
narrow areas of pipes
11) If you connect both probes of a voltmeter to one end of a 1.5V battery what reading will you get?
A
1.5 volts
B
1.5 amps
C
4.5 volts
D
0 volts
12) materials through which current will not easily flow are called:
A
insolators
B
absorbers
C
Conductors
D
semiconductors
13) Which of the following is the best conductor?
A
Metal Pot
B
Plastic Spoon
C
Ceramic coffee cup
D
Piece of foam
14) an ohm is the measurement for
A
Power
B
current
C
voltage
D
resisitance
15) As Current increases, Voltage__________.
A
decreases
B
increases
C
inverses
D
stays the same
16) A light bulb requires 4 amps to produce light. the resistance of the bulb is 4 ohms. How many 2 volt batteries will you need to light the bulb?
A
8
B
4
C
6
D
2
*select an answer for all questions
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