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WorksheetsChapter 8 Magnetism 8th Grade Putman
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
A device that increases or decreases voltage in a power line is a ____.
a)
transformer
b)
generator
c)
commutator
d)
motor
2.
Current that does NOT reverse direction is called ____.
a)
magnetic current
b)
direct current
c)
circuit current
d)
alternating current
3.
The location of the strongest magnetic forces is the ____.
a)
magnetic domains
b)
magnetic fields
c)
magnetic poles
d)
electromagnets
4.
Current that reverses direction in a regular pattern is called ____.
a)
direct current
b)
circuit current
c)
magnetic current
d)
alternating current
5.
The region around a magnet where the magnetic forces act is the ____.
a)
magnetic field
b)
magnetic pole
c)
magnetic domain
d)
electromagnetic pole
6.
Objects that keep their magnetic properties for a long time are called ____.
a)
temporary magnets
b)
permanent magnets
c)
magnetic domains
d)
electromagnets
7.
A device that uses an electromagnet to measure electric current is a(n) ____.
a)
generator
b)
commutator
c)
galvanometer
d)
electric motor
8.
The function of an electric motor is to change ____.
a)
mechanical energy to electrical energy
b)
electrical energy to chemical energy
c)
chemical energy to electrical energy
d)
electrical energy to mechanical energy
9.
The function of a generator is to change ____.
a)
mechanical energy to electrical energy
b)
electrical energy to mechanical energy
c)
electrical energy to chemical energy
d)
chemical energy to electrical energy
10.
A dry-cell battery produces ____.
a)
an alternating current
b)
a direct current
c)
both direct and alternating current
d)
the same current that a generator produces
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