Electromagnetism

Flashcard
•
Physics
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is electromagnetism?
Back
Electromagnetism is the branch of physics that deals with the interaction between electric charges and magnetic fields.
2.
FLASHCARD QUESTION
Front
What is an electromagnet?
Back
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.
3.
FLASHCARD QUESTION
Front
How does electricity create a magnetic field?
Back
When an electric current flows through a wire, it generates a magnetic field around the wire.
4.
FLASHCARD QUESTION
Front
What is the relationship between current and magnetic strength in an electromagnet?
Back
As the electric current increases, the magnetic strength of the electromagnet also increases.
5.
FLASHCARD QUESTION
Front
What is a permanent magnet?
Back
A permanent magnet is a material that maintains a persistent magnetic field without the need for an external power source.
6.
FLASHCARD QUESTION
Front
How can you turn an electromagnet on and off?
Back
You can turn an electromagnet on and off by controlling the electric current flowing through it.
7.
FLASHCARD QUESTION
Front
What are the two poles of a magnet called?
Back
The two poles of a magnet are called the North pole and the South pole.
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