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Electricity, Magnetism, And Motion Part 1
Test Description: This is for review over chapter 3 of Electricity and Magnetism Text from the Pearson Publishing.
Instructions: Answer all questions to get your test result.
1) Which type of energy is associated with electric currents?
A
magnetic energy
B
electrical energy
C
geothermal energy
D
mechanical energy
2) What is one difference between a galvanometer and an electric motor?
A
An electric motor causes something to move.
B
A galvanometer uses an electric current.
C
In an electric motor, the armature spins continuously.
D
An electric motor uses electrical energy.
3) The process of generating an electric current from the motion of a conductor in a magnetic field is
A
conduction.
B
motion.
C
induction.
D
magnetism.
4) A DC generator is the same as a(n)
A
electric motor.
B
electric current.
C
armature.
D
AC generator.
5) A device that increases or decreases voltage is called a(n)
A
alternator.
B
transformer.
C
turbine.
D
generator.
6) Electric current from a generating plant is
A
alternating current transmitted at low voltages, but usually used at high voltages.
B
alternating current transmitted at high voltages, but usually used at low voltages.
C
direct current transmitted at high voltages, but usually used at low voltages.
D
direct current transmitted at low voltages, but usually used at high voltages.
7) An alternating current consists of charges that
A
flow in one direction in some devices and change direction in others.
B
flow in one direction only.
C
move back and forth in a circuit.
D
turn on and off repeatedly.
8) A solenoid with a ferromagnetic core is called a(n)
A
electromagnet.
B
temporary magnet.
C
magnetic pole.
D
lodestone.
9) Which of the following does NOT involve the use of an electromagnet?
A
lifting heavy metal objects with a crane at a junkyard
B
recording a television show onto a videotape
C
recording a song onto an audiotape
D
picking up paperclips using a bar magnet
10) The relationship between electricity and magnetism is called
A
current.
B
voltage.
C
electromagnetism.
D
a solenoid.
11) The two ends of a solenoid act like
A
poles.
B
electrons.
C
a circuit.
D
a compass needle.
12) What is used to turn the pointer of a galvanometer?
A
a battery
B
an electric current
C
a crank
D
a bar magnet
13) Which is NOT a part of an electric motor?
A
brushes
B
commutator
C
armature
D
slip ring
14) Which is NOT part of an AC generator?
A
crank
B
slip ring
C
commutator
D
armature
*select an answer for all questions
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