
electromagnetism
Authored by abeer saad
Science
8th Grade
Used 33+ times

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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The closer to the wire coils the _____ the magnetic field.
What's a magnetic field?
Stronger
Weaker
Same
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a device that uses an electric current to produce motion
electromagnet
electric motor
electric generator
electromagnetism
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a device that uses a magnetic field to transfer mechanical energy to electric energy
electromagnet
electric motor
electric generator
electromagnetism
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a magnet created by wrapping a current-carrying wire around a ferromagnetic core
electromagnet
electric motor
electric generator
electromagnetism
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The strength of an electromagnet can be increased by reducing the number of turns on the wire coil so that more current can flow.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The more loops in a coil of wire around the core of an electromagnet, the stronger the magnetic force.
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As a nail approaches the south pole of a magnet, what happens to its magnetic domains?
The north poles of the domains point toward the magnet.
The south poles of the domains point toward the magnet.
The domains spin, but end up in no particular pattern.
The domains remain unaffected by the magnet.
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