Magnets

A north pole and a south pole will attract each other.

• True

• False

Which of the following objects cannot be moved by a magnet?

• A paper clip

• A nail

• A toothpick

• A staple

How is a permanent magnet different from a temporary magnet?

• A permanent magnet attracts materials made of iron.

• A permanent magnet has poles.

• A permanent magnet has a magnetic field.

• A permanent magnet keeps its magnetism for a long time.

Earth acts like a giant magnet because its center is made up MOSTLY of

• Granite

• Limestone

• Iron

• Nickel

True or False: All metals stick to magnets.

• True
• False

It is possible for a magnet to have only one pole.

• True
• False

A device that uses a free-moving magnetic needle to show direction is a:

• Lodestone

• Magnet

• Compass

• Magnetic field

Where is the force of attraction the strongest on a magnet?

• At the poles.

• In the middle of the magnet.

• Above the magnet.

• Below the magnet.

Why does a compass needle, point towards the north?

• The compass is a bar magnet.

• North is up.

• It deflects.

• It lines up with the Earth's magnetic field.

What will happen when these magnets are brought close together?

• They will attract each other.

• They will repel each other.

• Both the magnets will turn to the left.

• Both the magnets will turn to the right.