Electromagnetism

Front

What happens to the magnetic field of a magnet as you move further away from it?

Back

The magnetic field becomes weaker.

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Front

What materials can a magnet pick up?

Back

A magnet can pick up objects made of iron or steel.

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Front

What is the area around a magnet called?

Back

The area around a magnet is called the magnetic field.

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Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

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Front

What is the best material to use as the core of an electromagnet?

Back

An iron nail is the best material to use as the core of an electromagnet.

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Front

What components are typically found in an electromagnet?

Back

An electromagnet typically consists of a battery, wire, and a core material.

Front

How does the strength of an electromagnet change?

Back

The strength of an electromagnet can change by adjusting the amount of electric current flowing through the wire.

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Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet produces a constant magnetic field, while an electromagnet's magnetic field can be turned on and off.

Front

What is a magnetic field?

Back

A magnetic field is the region around a magnet where magnetic forces can be detected.

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Front

What is the role of electric current in an electromagnet?

Back

Electric current creates a magnetic field when passed through wire loops surrounding a core.