Magnets and Electromagnets

What is Magnetism?

• The ability of a material to stick to any surface.

• The force that makes certain metals attract or repel each other.

• The ability to conduct electricity.

• The force that only pushes objects away.

Which of the following is a type of permanent magnet?

• Bar Magnet

• Electromagnet

• Coil

• Battery

What happens when you place iron filings on a piece of paper above a magnet?

• The filings melt.

• Nothing happens.

• The filings show the magnet field lines.

• The filings float in the air.

True OR False: All metals are attracted to a magnet.

• True

• False

The type of metal that is strongly attracted to a magnet is (a)  

Explain why non-metals such as plastic or wood DO NOT stick to magnets.

What happens to an electromagnet when the electric current is switched off?

• It remains magnetic.

• It turns into a permanent magnet.

• It loses its magnetism.

• Nothing happens.

An electromagnet requires (a)   to produce a magnetic field.

Describe one real-life application of electromagnets in your daily life and how it works.

Why is it important for schools to collect and recycle metals that are attracted to magnets?

• It helps the environment.

• It destroys magnets.

• It makes the school look clean.

• It is required by law.