IGCSE magnetism

Some metals can be magnetic. Which of these can be magnetic?

• Steel

• Copper

• Aluminum

• Copper

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

Which of the following diagrams is INCORRECT?

• A

• B

• C

• D

What happens to the strength of a magnetic field as you move away from the magnet?

• The strength of the magnetic field increases.

• The strength of the magnetic field doesn't change.

• The strength of the magnetic field is doubled.

• The strength of the magnetic field decreases.

What is meant by the term magnetic field line?

• Line that shows direction of the magnetic force

• Line that shows direction a metal object will move.

• Line in between the magnetic poles

• Line that shows the flow of electric current.

Which statement COULD NOT be used to describe a uniform magnetic field?

• Field lines point in the same direction.

• Parallel field lines

• Field lines get closer together.

• Field lines do not change direction.

What happens when an electric current flows through a wire?

• The wire begins to spin.

• Nothing happens.

• A field of gravity is created around the wire.

• A magnetic field is created around the wire.

What does this image show?

• Parallel circuit

• Series circuit

• Magnet

• Electromagnet

How do you make an electromagnet stronger?

• Add a motor and/or lightbulbs
• Add more light bulbs and/or wire coils
• add more wire coils and/or a switch
• add more wire coils and/or batteries

What type of core is best for electromagnets?

• Steel

• Iron

• Plastic

• Copper