P15 Electromagnetism Retrieval

Fill in the two gaps correctly: A magnetic field is the region of space around a ___________ where a ________________ will experience a force

• charge, charge

• magnet, magnet

• magnet, magnetic material

• magnetic material, magnetic material

If a South Pole is brought near another South Pole, what will happen?

• They attract

• They repel

• No force

• Nuclear explosion

As you get further from a magnet, the magnetic field’s strength...?

• Stays the same

• Increases

• Decreases

Where is the magnetic field of a magnet the strongest? Choose the best answer.

• Far away

• Close by

• At the poles

• Along the sides

In which direction do magnetic field lines always point?

• North to South

• South to North

• Sideways

What does the distance between magnetic field lines indicate?

• The direction of the field

• The age of the magnet

• The strength of the field: closer together is stronger

• The strength of the field: further apart is stronger

What is a permanent magnet?

• A magnetic material in a magnetic field

• A material that produces its own magnetic field

• A device that magnetises when a current is turned on

• A material that is always attracted to other magnets

What is an induced magnet?

• A material that causes other materials to become magnetic

• A magnet that also glows in the dark

• A material that becomes magnetic when placed in a magnetic field

• A material that repels other magnets

A small bar magnet, free to rotate about its centre, is found in which device?

• An electric kettle

• A magnetic compass

• An electric door bell

• A crowbar

Which of the following would have a magnetic field around it? Choose 2.

• A long wire

• A wire with a current flowing through it

• A solenoid with a current flowing through it

• A piece of iron