What is an electromagnet?
Electricity and Magnetism

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Science
•
7th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It can be turned on and off.
2.
FLASHCARD QUESTION
Front
How do electromagnets differ from regular magnets?
Back
Electromagnets can be turned off and on, their polarity can be reversed, and their strength can be changed.
3.
FLASHCARD QUESTION
Front
What happens to the force between two magnets as the distance between them increases?
Back
The force between two magnets decreases as the distance between them increases.
4.
FLASHCARD QUESTION
Front
What is the effect of adding more coils of wire to an electromagnet?
Back
Adding more coils of wire to an electromagnet increases its strength.
5.
FLASHCARD QUESTION
Front
What is the role of a switch in an electromagnet circuit?
Back
A switch controls the flow of electricity, allowing the electromagnet to be turned on or off.
6.
FLASHCARD QUESTION
Front
What is magnetic field?
Back
A magnetic field is the area around a magnet where magnetic forces can be detected.
7.
FLASHCARD QUESTION
Front
What materials can be used to make an electromagnet?
Back
Common materials include iron, steel, and other ferromagnetic materials.
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