Magnets & Magnetic Force

Front

What is the Earth's magnetic field useful for?

Back

Deflecting the solar wind, charged particles that come from the Sun.

Front

How are electromagnets created?

Back

An electric current running through a surrounding coil.

Front

What is a temporary magnet?

Back

A magnet that stays magnetic only while it touches a permanent magnet, or one that is magnetic for a very short time.

Front

What characteristics do magnetic substances have?

Back

They can push or pull objects without touching them.

Front

What materials can be attracted to magnets?

Back

Metals such as iron, nickel, and cobalt.

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 magnetic force?

Back

The attraction or repulsion that arises between electrically charged particles due to their motion.

Front

What is the difference between a magnet and a magnetic material?

Back

A magnet produces its own magnetic field, while a magnetic material can become magnetized in the presence of a magnetic field.

Front

What is the role of magnetic fields in electric motors?

Back

Magnetic fields interact with electric currents to produce motion.

Front

What is the significance of the magnetic poles?

Back

Magnetic poles are the regions of a magnet where the magnetic force is strongest; they are labeled as north and south.