Forces At A Distance

Front

What are the components of an electromagnet?

Back

A power source, a magnet, and coils of wire.

Front

What surrounds a wire when electric current is flowing through it?

Back

A magnetic field.

Front

What is a magnetic field?

Back

The invisible space around a magnet that pushes or pulls.

Front

How does a permanent magnet differ from a temporary magnet?

Back

A permanent magnet keeps its magnetism for a long time.

Front

What happens when a north pole and a south pole of magnets are brought together?

Back

They attract each other.

Front

What is the role of coils of wire in an electromagnet?

Back

They create a magnetic field when electric current flows through them.

Front

What is the effect of distance on the strength of a magnetic field?

Back

The strength of a magnetic field decreases with distance from the magnet.

Front

What is the difference between a magnetic field and an electric field?

Back

A magnetic field is produced by moving charges, while an electric field is produced by stationary charges.

Front

What materials are typically attracted to magnets?

Back

Materials made of iron, nickel, or cobalt.

Front

What is the significance of the poles of a magnet?

Back

The poles determine the direction of the magnetic field and how magnets interact with each other.