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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
power
C
current
D
resistance
2) Anything that uses electrical energy is called a _________.
A
resistor
B
electronic
C
lightbulb
D
heater
3) A closed circuit:
A
is off
B
requires more voltage.
C
Has a break in it
D
is on
4) Water pipes can be compared to which part of an electrical circuit?
A
battery
B
switch
C
wires
D
resistors
5) Which of the following creates an open circuit?
A
Turning off a switch
B
All of these
C
Using a solar cell
D
adding a battery
6) Current in circuits refers to:
A
potential difference
B
flowing electron
C
resistance
D
energy loss
7) A device that converts chemical energy into a voltage difference is a(n):
A
battery
B
ammeter
C
voltmeter
D
resistor
8) Current is measured in:
A
joules
B
ohms
C
volts
D
amperes
9) a voltage difference:
A
wastes energy.
B
supplies the energy to make a charge flow
C
is the term for the rate of charge flow
D
causes a short circuit
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
1.5 amps
B
4.5 volts
C
0 volts
D
1.5 volts
12) materials through which current will not easily flow are called:
A
semiconductors
B
insolators
C
absorbers
D
Conductors
13) Which of the following is the best conductor?
A
Piece of foam
B
Plastic Spoon
C
Metal Pot
D
Ceramic coffee cup
14) an ohm is the measurement for
A
voltage
B
Power
C
current
D
resisitance
15) As Current increases, Voltage__________.
A
decreases
B
increases
C
stays the same
D
inverses
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
6
B
8
C
4
D
2
*select an answer for all questions
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