Electromagnetism

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that can be turned on and off using electricity.

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 relationship between electricity and magnetic fields?

Back

Electricity always creates a magnetic field.

Front

What happens to the magnetic field lines when magnets repel each other?

Back

The magnetic field lines point away from each other.

Front

What effect does increasing the number of coils in an electromagnet have?

Back

Increasing the number of coils in an electromagnet will increase the power of the magnet.

Front

What is a magnetic field?

Back

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

Front

What materials can be used to make an electromagnet?

Back

Common materials include iron, steel, and copper wire.

Front

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

Back

A permanent magnet always has a magnetic field, while an electromagnet's field can be turned on and off.

Front

What is the role of electricity in creating a magnetic field?

Back

Electricity flows through a wire, creating a magnetic field around the wire.

Front

What happens when you connect a battery to a wire coil?

Back

Connecting a battery to a wire coil creates an electromagnet.