Electric and Magnetic Forces Review

Front

What causes Earth's magnetic field?

Back

Earth has a magnetic field because of its liquid iron core.

Front

What are the three materials needed to create an electromagnet?

Back

Coiled wire, iron material for wire, and an electric energy source.

Front

What fundamental property of matter leads to electromagnetic interactions?

Back

Electric charge.

Front

What are the three types of magnets?

Back

Natural, permanent, and temporary magnets.

Front

What happens when two negative charges come in contact?

Back

They repulse each other.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

What is the role of a battery in an electromagnet?

Back

The battery provides the electric energy source needed to create the magnetic field.

Front

What materials are commonly used to make permanent magnets?

Back

Materials like iron, nickel, and cobalt are commonly used to make permanent magnets.

Front

What is a magnetic field?

Back

A magnetic field is the area around a magnet where magnetic forces can be observed.

Front

How do like charges interact?

Back

Like charges repel each other.