Properties of Magnet

Properties of Magnet 


Bring a powerful magnet near an iron key. What do you observe? Bring an iron key near a powerful magnet. What do you observe? Force of attraction exists between a magnet and iron. Attraction exists between magnet and some other substances like nickel and Alnico also. Verify whether this is true in case you get these substances. What do you learn from this experiment?

Bar magnet Force

Bar magnet Attracts

Remember 

Magnet and a few substances like Iron attract each other.

Properties of Magnet


Take a bar magnet and suspend it from a stand with the help of a thread. Notice the direction in which the ends of the magnet lie as soon as it comes to rest. Now turn the magnet to some other direction and gently leave it. Let it come to rest. Find out whether its ends are pointing to the same directions as before or not. Repeat the experiment using different magnets. What do you infer?

Bar magnet Direction

Remember  

Magnet has the property of indicating the directions when it is freely suspended. Magnet comes to rest in North-South direction.

Properties of Magnet

Take a bar magnet and roll it on iron filings. Did iron filings cling to it? It is quite natural for a magnet to attract iron or vice versa? Now observe the iron filings clinging to the magnet. Do you find iron filings clinging uniformly all over the magnet? In which part of the magnet do you find more iron filings? Do you know why? Repeat the experiment using different types of magnets. What do you infer?

Bar magnet Properties

Remember 

Attraction will be maximum at the ends of the magnet. The ends of a magnet where the attraction is maximum are called the poles of a magnet. Every magnet has two poles-North and South. These ends/poles point to North and South directions.