Unit 1 Chapter 4&5 Flashcard

Front

What is an electromagnet made of?

Back

An electromagnet is made with coiled wire and a source of electric charge, such as a battery.

Front

Can ideas about magnetic forces help people think of new inventions?

Back

True

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Front

What kind of force is used to pick up paper clips with a magnet?

Back

Magnetic force.

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Front

What happens to the magnetic force when an electromagnet is turned off?

Back

The magnetic force stops and it no longer attracts or repels other objects.

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Front

What happens to the strength of magnetic attraction as objects get farther away from each other?

Back

The strength decreases.

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Front

What is a magnet?

Back

A magnet is an object that produces a magnetic field, attracting certain metals like iron.

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Front

What materials are attracted to magnets?

Back

Materials like iron, nickel, and cobalt are attracted to magnets.

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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 magnetic force?

Back

Magnetic force is the attraction or repulsion between objects that have a magnetic field.

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Front

How can you make a simple electromagnet?

Back

You can make a simple electromagnet by wrapping a wire around a nail and connecting the ends of the wire to a battery.