Magnetism Review

T/F. Magnets have a south pole and a north pole.

• True

• False

If the south pole of a magnet is placed near the north pole of a magnet, what happens?

• They attract

• They repel

• Nothing

If the north pole of a magnet is placed near the north pole of another magnet, what happens?

• They attract

• They repel

• Nothing

When is the force between opposite poles of magnets the strongest?

• When they are hot

• When they are cold

• When they are far apart

• When they are close together

Which of the following is true of a bar magnet?

• It will demagnetize

• It will become stronger

• Each half will have opposite poles

• Each half will have the same pole

T/F. All metals are magnetic.

• True

• False

The strongest part of a magnet is located where?

• Middle of the magnet

• The poles

• Just the north end

• Just the south end

Which of the following objects would a magnet attract?

• Rubber band

• Pencil

• Eraser

• Metal paper clips

What components make up an electromagnet?

• Battery, copper wire, iron nail

• Battery, copper wire, light bulb

• Battery, copper wire, plastic bottle

• Battery, wire, aluminum

How does wrapping more coils of wire around an electromagnet affect the electromagnet?

• It makes it brighter

• It makes it weaker

• It makes it heavier

• It makes it stronger