Electromagnets

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that gets its magnetism from an electric current. It can be turned on and off.

Front

How can you increase the strength of an electromagnet?

Back

You can increase the strength of an electromagnet by adding more coils of wire around the core.

Front

What is a magnetic field?

Back

A magnetic field is the area in which a magnet exerts magnetic force.

Front

What does a compass point to?

Back

A compass always points to the strongest magnetic field around.

Front

True or False: An electromagnet can be turned on and off.

Back

True

Front

What materials are commonly used to make the core of an electromagnet?

Back

Common materials include iron, steel, or other ferromagnetic materials.

Front

What happens when you reverse the current in an electromagnet?

Back

Reversing the current will reverse the poles of the electromagnet.

Front

What is the role of the battery in an electromagnet?

Back

The battery provides the electric current needed to create the magnetic field.

Front

Can an electromagnet lose its magnetism?

Back

Yes, an electromagnet can lose its magnetism when the electric current is turned off.

Front

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

Back

A permanent magnet maintains its magnetism without an electric current, while an electromagnet requires current to generate magnetism.