CBSE Class 6 Science Chapter 13 Notes Fun with Magnets
Fun with Magnets Class 6 Notes Understanding the Lesson
1. Magnets are very useful materials.
2. The word magnet is derived from the old French word magnet which means lodestone.
3. The ore from which magnet is extracted is called magnetite.
4. Magnets are classified as-Natural magnets and Artificial magnets.
5. Magnetic materials are those which get attracted to magnets, e. g., iron, nickel and cobalt.
6. Non-magnetic materials are those that do not get attracted to magents, e. g., paper, wood, plastic, etc.
7. The ends of magnet are called poles. One is the north pole and the other is the south pole.
8. Attraction is maximum at the poles of a magnet.
9. Magnets are also used for finding directions.
10. A freely suspended magnet always comes to rest in the north-south direction.
11. The like poles of the magnets repel each other whereas unlike poles attract each other.
12. There are several methods of making magnets.
13. Rubbing a permanent magnet on an iron can make the iron a temporary magnet.
14 Temporary magnets lose their property of magnetism after a short period of time.
15. Permanent magnets do not lose their property of magnetism even after a long period of time.
16. The permanent magnets can also lose their magnetism and get demagnetized if hammered or heated or dropped from a height.
17. A magnet also loses its magnetism if it is not stored properly.
18. Bar magnets must always be stored in pairs with their opposite poles on the same side.
19. Magnets are used in ATM cards, credit cards, audio cassettes, floppy disks, generators, etc.
Class 6 Science Chapter 13 Notes Important Terms
Compass: A small glass containing as magnetized needle pivoted on a nail is called compass.
Magnet: A substance that has the property of attracting objects made of iron, cobalt and nickel is called magnet.
Magnetite: The ore of iron which has magnetic properties is called magnetite.
North pole: When suspended freely, one pole of the magnet always pointed towards north. This is known as north pole.
South pole: When suspended freely, the end of a magnet which points towards south is known as south pole.