Magnetic Fields 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 magnetic field lines that show the direction and strength of the magnetic force.

Front

What happens to potential energy when a magnet is moved against the magnetic force?

Back

The potential energy increases because work is done against the magnetic force.

Front

What is the difference between attraction and repulsion in magnets?

Back

Attraction occurs when opposite poles of magnets come together, while repulsion occurs when like poles of magnets push away from each other.

Front

What are magnetic poles?

Back

Magnetic poles are the two ends of a magnet where the magnetic force is strongest. Every magnet has a north pole and a south pole.

Front

What is the rule for determining the direction of magnetic field lines?

Back

Magnetic field lines exit from the north pole and enter the south pole of a magnet.

Front

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

Back

They repel each other.

Front

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

Back

They attract each other.

Front

What is the effect of distance on magnetic force?

Back

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

Front

What is potential energy in the context of magnets?

Back

Potential energy in magnets refers to the energy stored due to the position of the magnets relative to each other.

Front

How do magnetic field lines indicate the strength of a magnetic field?

Back

The closer the magnetic field lines are to each other, the stronger the magnetic field.