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