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