1. Magnetism

2. A substance which attracts iron particles/objects is called Magnet.
In addition to iron , Magnet also attracts Nickel and Cobalt.
Property of Magnet to attract specific metals is called Magnetism.
Magnetic force works even without being in contact with the object.
Magnetism

3. The existence of magnet was first discovered in Magnesia, a Village in Asian
Continent. A shepherd named Magnes, realised that his shoes and iron nails
attached to his stick are getting pulled towards a specific stone. This stone, one of
the natural minerals, having magnetic properties AyaskaMt
Kinaja is also called as Loadstone in Middle English. After further research
various different types of magnets were discovered.
Discovery of Magnet
Magnetism

4. Types of Magnets
Disc Magnet
Magnetic
Compass
Bar Magnet
Horse-shoe Magnet
Magnetism

5. Magnetism

6. Magnetism

7. Magnetic Substances
Those substances which are
attracted towards magnet are called
as Magnetic Substances
Non-Magnetic Substances
Those substances which does not get
attracted towards Magnet are called as
Non-Magnetic substances.
Magnetism

8. Magnetism

9. Properties of Magnet
The edges of Magnet are called it’s Poles.
A freely suspended magnet , parallel to horizon comes to rest in North-
South direction.
The edge pointing towards south is called South Pole whereas the one
pointing towards North is called North Pole.
Magnetism

10. Magnet’s strength is located at it’s poles.
Magnetism

11. A magnet repels the like pole of the other magnet.
(South-South/North-North)
Magnetism

12. Magnetism

13. There is attraction between unlike poles of two magnets.
Magnetism

14. Earth itself is a huge Magnet.
But it’s geographic poles are
exactly opposite of Magnetic
poles. i.e
Earth’s geographic North Pole = Earth’s Magnetic South Pole
Earth’s geographic South Pole = Earth’s Magnetic North Pole
Magnetism

15. Uses of Magnet
Magnetic Compasso
Medical Science
To lift heavy material using cranes
In Telephone receivero
Loudspeaker
In Toys
Magnetism