Magnet

Steel is easy to magnetise, but it stays magnetised when you remove the magnet

• True

• False

What happens when two like poles of magnets are bought close to each other?

• They attract

• They repel

• They create an electric current

• Nothing happens

What is the region around a magnet where its force can be felt called?

• Gravitational field

• Force field

• Magnetic field
• Electric field

When you bring two magnets together, their magnetic field interact

• True

• False

Magnetic levitation happens when poles attract

• True

• False

Why is steel a magnet?

• It contains copper

• It contains a high amount of plastic

• It contains mainly iron

• It doesn't contain any iron

What is the black strip on a credit card made of?

• Pure iron

• A thin layer of gold

• Plastic with small iron pieces

• Copper and silver

Why does ferrofluid move when placed near a magnet?

• Because it contains water

• Because it becomes electrically charged

• Because it repels the magnet

• Because it is affected by the magnetic field

What is neutral point in a magnetic field?

• The point where magnetic field is strongest

• The area where the magnet is weakest

• The point where the magnetic field of two magnets cancel out

• The place where all the iron fillings gather

You can demagnetize a permanent magnet by

• Hitting it with a hammer

• Cooling it

• None of the above