Magnetic Fields Critical Juncture Review

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be detected. It is represented by field lines that show the direction and strength of the magnetic force.

Front

What happens when two like poles of magnets are brought close together?

Back

They repel each other.

Front

What happens when two opposite poles of magnets are brought close together?

Back

They attract each other.

Front

What is potential energy in the context of magnets?

Back

Potential energy is the stored energy in a system due to the position of the magnets relative to each other.

Front

What is kinetic energy in the context of magnets?

Back

Kinetic energy is the energy of motion that magnets have when they move due to magnetic forces.

Front

How can you increase the potential energy in a system of magnets?

Back

By moving the magnets closer together.

Front

What do magnetic field lines indicate?

Back

Magnetic field lines indicate the direction of the magnetic force and the strength of the magnetic field.

Front

What is the relationship between potential energy and kinetic energy in a system of magnets?

Back

Some potential energy can be converted into kinetic energy when magnets move.

Front

What is the effect of distance on the magnetic force between two magnets?

Back

The magnetic force decreases as the distance between the magnets increases.

Front

What is the significance of the density of magnetic field lines?

Back

The density of magnetic field lines indicates the strength of the magnetic field; closer lines mean a stronger field.