Magnetism

​Natural magnet - magnet that have property of attracting iron and this magnet is a weak magnet.

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​Artificial magnet - made of materials like Iron, Nickel, Cobalt and Steel where there can be easily magnetised (easily can be a magnet). This magnet is a strong magnet.

• ​Magnet has two poles.

• A freely hanging magnets point in a north-south direction

​This is because the earth behaves like a huge bar magnet.

• ​Materials that are attracted by a magnet.

• ​Example are iron, nickel, cobalt and steel

• ​Materials that are not attracted by a magnet.

• ​Example are rubber, plastics, copper, wood and aluminium.

​•When a magnetic materials is placed near a magnet, both of its ends are attracted to it

•When a magnet is placed near a magnet, one of its end will attract while the other end will repel

• Dynamos and motors

  Doorstopper

  ATM cards

  Junkyards

  Refrigerator doors

​•The region of space around a magnet which attracts magnetic materials

•When iron filing are sprinkled around a magnet, the line of force present

•When the lines of force are close together, the magnetic field is strong

•When the lines are further apart, the magnetic field is weak