Module Review: Electromagnetic Forces

Front

What happens to an electromagnet when you wrap more coils around it?

Back

It becomes stronger.

Front

Which of the following does NOT increase the magnetism of an electromagnet?

Back

Increasing the distance to the power source.

Front

What is an example of a conductor?

Back

A metal screw.

Front

What is the term for the ability of some materials to attract certain metals?

Back

Magnetism.

Front

What is the flow of electricity called?

Back

Electric current.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

What materials are typically used to make electromagnets?

Back

Copper wire and iron cores.

Front

How can you increase the strength of an electromagnet?

Back

By increasing the number of coils, increasing the current, or using a ferromagnetic core.

Front

What is the difference between a conductor and an insulator?

Back

Conductors allow electricity to flow easily, while insulators do not.

Front

What is the role of a power source in an electromagnet?

Back

It provides the electric current needed to generate the magnetic field.