What Are Magnets?

Magnets

I want to learn how magnets push or pull objects.

Magnets

• A magnet is an object that attracts iron or steel objects.

• When objects attract, they pull toward each other.

• If an object and a magnet attract each other, the object is magnetic.

Most magnetic objects have a metal in them called iron.

QUESTION

How can you find out if an object is magnetic?

QUESTION

How are magnetic and nonmagnetic objects different?

Do you remember what a force is?

Did you know that magnets act on each other!

All magnets have forces that act on other magnets.

• The force between two magnets can either be a push or a pull.

• The poles are the places on a magnet where the forces are strongest.

• All magnets have 2 poles.

• A magnet does not have to touch an object to push or pull it.

On some magnets, the poles are labeled N for north pole and S for south pole.

• 2 unalike poles will attract each other.

• 2 like poles will repel. • When a magnet repels,

it pushes an object away from itself.

QUESTION How do repel and attract compare?

VIDEO

http://www.brainpopjr.com/science/forces/magnets/