Magnetic Force

Front

What are the two poles of a magnet called?

Back

North and South poles.

Front

What is the area around a magnet where magnetic forces can be detected?

Back

Magnetic Field.

Front

How can you increase the strength of an electromagnet?

Back

By having more wire coils around the core.

Front

Where is the magnetic force strongest on a magnet?

Back

At the poles.

Front

What is an electromagnet?

Back

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

Front

What is the main source of Earth's magnetic field?

Back

Movements of molten iron in Earth's outer core.

Front

What is a magnetic domain?

Back

A region within a magnetic material where the magnetic moments are aligned in the same direction.

Front

What is lodestone?

Back

A naturally magnetized piece of the mineral magnetite.

Front

What happens to the magnetic field when you increase the current in an electromagnet?

Back

The magnetic field becomes stronger.

Front

What is the relationship between electricity and magnetism?

Back

Electricity can create a magnetic field, and a changing magnetic field can induce an electric current.