Magnetism

Front

What is a magnetic field?

Back

The region around a magnet where the magnetic force is exerted.

Front

When two magnets repel, they __?

Back

Push apart.

Front

What causes magnetism?

Back

The motion of electric charges.

Front

What is an electromagnet?

Back

A magnet made by electric current.

Front

What materials do magnets stick to?

Back

Iron.

Front

What is a permanent magnet?

Back

A magnet that maintains its magnetic properties without the need for an external power source.

Front

What is the difference between a magnet and an electromagnet?

Back

A magnet is always magnetic, while an electromagnet requires electric current to generate a magnetic field.

Front

What is magnetic force?

Back

The attraction or repulsion that occurs between magnetic objects.

Front

What is ferromagnetism?

Back

A phenomenon where certain materials can become magnetized and exhibit strong magnetic properties.

Front

What is the Earth's magnetic field?

Back

The magnetic field that surrounds the Earth, generated by the movement of molten iron in its outer core.