Magnets and Electromagnets

Front

What are the two poles of a magnet?

Back

North pole and South pole.

Front

What happens when like poles of two magnets are brought together?

Back

They repel each other.

Front

What happens when opposite poles of two magnets are brought together?

Back

They attract each other.

Front

What is an electromagnet?

Back

A magnet created by electric current flowing through a wire.

Front

How can you increase the strength of an electromagnet?

Back

By adding more coils, increasing the current, or using a ferromagnetic core.

Front

What is a magnetic field?

Back

The area around a magnet where magnetic forces can be detected.

Front

In which direction does a magnetic field move?

Back

From North to South.

Front

What effect does increasing the current in a wire have on the magnetic field?

Back

The magnetic field strengthens.

Front

What materials are typically attracted to magnets?

Back

Iron, nickel, and cobalt.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet maintains its magnetism, while an electromagnet's magnetism can be turned on and off.