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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
current
B
power
C
voltage
D
resistance
2) Anything that uses electrical energy is called a _________.
A
electronic
B
resistor
C
lightbulb
D
heater
3) A closed circuit:
A
Has a break in it
B
requires more voltage.
C
is off
D
is on
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
adding a battery
B
All of these
C
Turning off a switch
D
Using a solar cell
6) Current in circuits refers to:
A
potential difference
B
resistance
C
energy loss
D
flowing electron
7) A device that converts chemical energy into a voltage difference is a(n):
A
resistor
B
voltmeter
C
ammeter
D
battery
8) Current is measured in:
A
amperes
B
joules
C
volts
D
ohms
9) a voltage difference:
A
supplies the energy to make a charge flow
B
is the term for the rate of charge flow
C
causes a short circuit
D
wastes energy.
10) Which of the following is a good analogy for a battery?
A
water tower and pump
B
water pipes
C
a water faucet.
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
1.5 volts
C
4.5 volts
D
1.5 amps
12) materials through which current will not easily flow are called:
A
absorbers
B
semiconductors
C
insolators
D
Conductors
13) Which of the following is the best conductor?
A
Metal Pot
B
Piece of foam
C
Ceramic coffee cup
D
Plastic Spoon
14) an ohm is the measurement for
A
voltage
B
Power
C
resisitance
D
current
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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