Magnets 22

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

• True

• False

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

• Granite

• Limestone

• Iron

• Nickel

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.

Tags

NGSS.MS-PS2-3

This large crane magnet functions only when the electrical current is ON. The crane magnet is an example of what type of magnet?

• NIB Magnet

• Ceramic Magnet

• Electromagnet

• Disc magnet

Tags

NGSS.MS-PS2-5

Arrows are close together on a force field when the force is

• stronger

• weaker

• opposite

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Earth's magnetic South Pole is near Earth's geographic North Pole

• true

• false

Electronic devices create magnetic fields because they

• are magnets

• are compasses

• have moving particles with electric charge

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What THREE ways are electromagnets different from permanent magnets?

• they can be turned off and on

• they can increase in strength by increasing the current in the wire

• they are smaller in size

• they can change which is the north and south pole