Magnetism

Front

What is magnetism?

Back

Magnetism is a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.

Front

What are the two types of magnetic poles?

Back

North pole and South pole.

Front

Can a single magnetic pole exist in isolation?

Back

No, it is impossible to isolate a single magnetic pole; every magnet has both a north and a south pole.

Front

What happens when you break a bar magnet in half?

Back

Each half becomes a bar magnet with two poles.

Front

Where is the magnetic field strength strongest in a magnet?

Back

The magnetic field strength is strongest closest to the poles.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that can be turned on and off by controlling the electric current flowing through it.

Front

What shape do magnetic field lines take around a current-carrying wire?

Back

Magnetic field lines form a series of concentric circles around the wire.

Front

What is the relationship between electric current and magnetism?

Back

Electric current generates a magnetic field around the conductor.

Front

What materials are typically used to make permanent magnets?

Back

Materials like iron, nickel, and cobalt are commonly used to make permanent magnets.

Front

What is the Earth's magnetic field?

Back

The Earth's magnetic field is a magnetic field that extends from the Earth's interior out into space, protecting the planet from solar wind.