Magnets

What are the two main types of magnets?

• permanent magnets and electromagnets

• temporary magnets and super magnets

• magnetic and non-magnetic magnets

• north and south magnets

What are the names of the two poles of a magnet?

• North Pole and South Pole

• East Pole

• West Pole

• Top Pole

Explain what a magnetic field is.

• A magnetic field is a region around a magnetic material that repels all other materials.

• A magnetic field is a region around a magnetic material that attracts all other materials.

• A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

• A magnetic field is a region around a magnetic material that has no effect on other materials.

Name a material that is attracted to magnets.

• Plastic

• Iron

• Wood

• Glass

List one common use of magnets in everyday life.

• Refrigerator doors

• Bicycles

• Toothbrushes

• Hair dryers

Which type of magnet can be turned on and off?

• Electromagnet

• Static magnet

• Temporary magnet

• Permanent magnet

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

• They merge into one magnet.

• They attract each other.

• They repel each other.

• They explode.

What is the Earth's magnetic field responsible for?

• Protecting the planet from solar winds and cosmic radiation.

• Controlling the weather patterns on Earth

• Causing earthquakes and volcanic eruptions

• Generating electricity for human use

Name a material that is not attracted to magnets.

• aluminum

• iron

• nickel

• cobalt

How do magnets help in separating mixtures of iron and non-iron materials?

• Magnets have no effect on separating iron and non-iron materials in mixtures.

• Magnets repel iron materials, pushing them towards non-iron materials in the mixture.

• Magnets attract iron materials, separating them from non-iron materials in the mixture.

• Magnets attract non-iron materials, leaving only iron materials in the mixture.