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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
resistance
B
current
C
power
D
voltage
2) Anything that uses electrical energy is called a _________.
A
electronic
B
lightbulb
C
resistor
D
heater
3) A closed circuit:
A
requires more voltage.
B
Has a break in it
C
is off
D
is on
4) Water pipes can be compared to which part of an electrical circuit?
A
switch
B
wires
C
resistors
D
battery
5) Which of the following creates an open circuit?
A
All of these
B
adding a battery
C
Turning off a switch
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
resistor
B
ammeter
C
battery
D
voltmeter
8) Current is measured in:
A
volts
B
ohms
C
joules
D
amperes
9) a voltage difference:
A
supplies the energy to make a charge flow
B
causes a short circuit
C
is the term for the rate of charge flow
D
wastes energy.
10) Which of the following is a good analogy for a battery?
A
a water faucet.
B
water pipes
C
narrow areas of pipes
D
water tower and pump
11) If you connect both probes of a voltmeter to one end of a 1.5V battery what reading will you get?
A
4.5 volts
B
1.5 volts
C
0 volts
D
1.5 amps
12) materials through which current will not easily flow are called:
A
semiconductors
B
absorbers
C
insolators
D
Conductors
13) Which of the following is the best conductor?
A
Plastic Spoon
B
Ceramic coffee cup
C
Metal Pot
D
Piece of foam
14) an ohm is the measurement for
A
current
B
Power
C
voltage
D
resisitance
15) As Current increases, Voltage__________.
A
increases
B
inverses
C
stays the same
D
decreases
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
2
B
8
C
4
D
6
*select an answer for all questions
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