The material to which objects made from iron, nickel,cobalt, etc. get attracted is called a ‘magnet’. This property of a material is called ‘magnetism’.
What is induced magnetism?
A magnetic material acquires magnetism when placed near a magnet. This magnetism is called induced magnetism.
How is magnetism destroyed ?
Magnetism gets destroyed when a magnet is heated, thrown, knocked about or broken into pieces.
Define Magnet keeper.
In order to protect a magnet, a piece of soft iron is usually placed in the box in which a magnet is placed. Such a piece of iron is known as a magnet keeper since it protects the magnet.
Fill in the blanks:
A magnet always settles in the north-south direction
Permanent magnets are made from a mixture of nickel, cobalt and iron.
The properties of electromagnetism and repulsion between magnets are used in a maglev train.