Magnets

A bar magnet is a/an ______.

• permanent magnet

• temporary magnet

• copper

• electromagnet

The magnetic field around a permanent magnet cannot be switched on and off.

• True

• False

• Maybe

• Incomplete information

A magnet has ____ poles.

• 1

• 2

• 3

• 4

Only ______ substances can be attracted to a magnet.

• attract

• copper

• magnetic

• repel

Which of the following substance is not magnetic?

• cobalt

• copper

• iron

• nickel

Which of the are all magnetic?

• iron, steel, cobalt, nickel

• iron, steel, cobalt, magnesium

• iron, steel, copper, nickel

• iron, silicon, cobalt, nickel

A south pole of one magnet will ______ the south pole of another magnet.

• attract

• iron filings

• north pole

• repel

A metal can be shown to be a magnet by being attracted to a magnet.

• True

• False

• Maybe

• Incomplete information

The space around a magnet which would attract substances is called ______.

• field lines

• magnetic field

• plot

• repulsion

We can use ________ to show the shape of a magnetic field.

• iron filings

• lines of magnetic field

• plotting compases

• strongest