7.1 permanent and induced magnetism, magnetic forces and fields

Question 1

At which part of a magnet are the
magnetic forces strongest?

Answer 1

The poles of the magnet

Question 2

What happens when two magnets are brought close
to each other?

Answer 2

They exert a force on each other

Question 3

What is the difference between a permanent magnet and an induced
magnet?

Answer 3

● A permanent magnet produces its own
magnetic field
● An induced magnet becomes magnetic
when placed in a magnetic field

Question 4

What type of force does induced
magnetism always cause?

Answer 4

A force of attraction.

Question 5

What happens when an induced magnet
is removed from a magnetic field?

Answer 5

The induced magnet loses most/all of its
magnetism.

Question 6

What is a magnetic field?

Answer 6

The region surrounding a magnet where
another magnet or magnetic material
experiences a non-contact force.

Question 7

Give four examples of magnetic materials

Answer 7

1. Iron
2. Steel
3. Cobalt
4. Nickel

Question 8

In what direction does a magnetic field
point?

Answer 8

● In the direction that a north pole would
experience a force if placed in the field
● From the north seeking pole to the
south seeking pole of a magnet