Unit 7 Lesson 4 Magnetism Quizizz

A compass needle shows us the magnetic field of

• the sun

• Earth

• the moon

• a magnet that is near by

An electromagnet is a magnet that

• its strength can be varied and turned on and off

• always has a magnetic field around it

• has very little strength

Explain why the magnets are 'floating' above each other.

• The magnets are attracting each other as their unlike poles are facing each other.

• The magnets are repelling each other as their like poles are facing each other.

• Nothing happened. The magnets are weak and stayed in their position.

Which of the following is not a way to demagnetise a magnet?

• Heat the magnet over a fire.

• Soak the magnet in a pail of water.

• Drop the magnet many times on the floor.

• Hit the magnet with a hammer many times.

What is the SPACE around a magnet where the force is?

• Magnetic pole

• Magnetic field

• Magnetic needle

What is a temporary magnet?

• a magnet that lasts forever

• a magnet with a strong force

• material that has been magnetized but cannot hold its magnetism for long

• any magnet that attracts metals

Where is the force of attraction the strongest on a magnet?

• at the poles
• in the middle
• above the magnet
• below the magnet

These are the magnetic domains of:

• non-magnetic object

• magnetic object

• magnet

A group of atoms that has all like poles pointing in the same direction are called

• magnetic forces

• magnetic fields

• magnetic domains

• magnetic poles

Which type of magnet does not lose it's magnetic properties easily.

• a permanent magnet

• an electromagnet

• a temporary magnet

• a nail rubbed across the north pole of a magnet