Electromagnets and magnets

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that is created when an electric current passes through a coil of wire, generating a magnetic field.

Front

How can you make an electromagnet stronger?

Back

You can make an electromagnet stronger by adding more wire coils and/or batteries.

Front

What is the metal center of an electromagnet called?

Back

The metal center of an electromagnet is called the core.

Front

What surrounds every magnet?

Back

Every magnet is surrounded by a magnetic field.

Front

What type of current is needed to create an electromagnet?

Back

An electric current is needed to create an electromagnet.

Front

What material is commonly used as the core of an electromagnet?

Back

Iron is commonly used as the core of an electromagnet.

Front

What is a magnet?

Back

A magnet is any material that attracts iron or materials containing iron.

Front

What happens when you increase the number of wire coils in an electromagnet?

Back

Increasing the number of wire coils in an electromagnet increases its strength.

Front

What is the relationship between electricity and magnetism?

Back

Electricity can create magnetism; when electric current flows through a wire, it generates a magnetic field.

Front

What is a magnetic field?

Back

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