Magnetic Fields

Front

Can magnets interact without touching?

Back

Yes, magnets can exert forces on each other without direct contact.

Front

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

Back

They repel each other.

Front

What is a device that has a magnetic needle that spins freely and is used for navigation?

Back

A compass.

Front

Where are magnetic fields strongest?

Back

At both poles of a magnet.

Front

What is a conductor?

Back

A material that allows heat and electricity to pass through it.

Front

What is an insulator?

Back

A material that does NOT allow heat and electricity to pass through it.

Front

What is the shape of a magnetic field around a magnet?

Back

The magnetic field lines form closed loops from the north pole to the south pole.

Front

What is the unit of measurement for magnetic field strength?

Back

Tesla (T).

Front

What is the principle behind how a compass works?

Back

A compass works by aligning its magnetic needle with the Earth's magnetic field.

Front

What is the difference between permanent magnets and temporary magnets?

Back

Permanent magnets maintain their magnetism, while temporary magnets only exhibit magnetism in the presence of a magnetic field.