Unit 9: Magnetism

Front

What happens when you put a South pole and a South pole together?

Back

The magnets will repel.

Front

What is an electromagnet?

Back

An electromagnet is a magnet whose strength can be varied and turned on and off.

Front

What does a compass needle show us?

Back

The magnetic field of Earth.

Front

What happens when you put a North pole and a North pole together?

Back

The magnets will repel.

Front

What is the main characteristic of an electromagnet?

Back

Its strength can be varied and turned on and off.

Front

What are the two types of magnetic poles?

Back

North pole and South pole.

Front

What is the effect of like poles (North-North or South-South) when brought together?

Back

They repel each other.

Front

What is the effect of unlike poles (North-South) when brought together?

Back

They attract each other.

Front

What is a magnetic field?

Back

A region around a magnet where magnetic forces can be detected.

Front

What materials are typically attracted to magnets?

Back

Iron, nickel, and cobalt.