Magnetism

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A magnet is a substance that has the property of attracting iron, nickel, and cobalt. It always aligns itself in the north-south direction when freely suspended.

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Magnetic materials: Iron, Nickel. Non-magnetic materials: Wood, Plastic. These are classified based on whether they are attracted to a magnet or not.

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When a magnet is freely suspended, it always comes to rest in the north-south direction. The end pointing towards geographic north is called the North Pole of the magnet.

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The Earth behaves like a giant magnet. Its magnetic south pole is near the geographic north, which attracts the north pole of the suspended magnet, aligning it in the north-south direction.

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The two poles of a magnet are called the North Pole (N) and the South Pole (S). These are located at the ends where magnetic attraction is strongest.

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Like poles repel each other, and unlike poles attract each other. For example, N-N or S-S repel, while N-S attract.

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The two north poles will repel each other because like poles repel. This can be observed as a pushing force between the magnets.

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No, a magnet cannot have only one pole. Magnetic poles always exist in pairs (N and S). If a magnet is broken, each piece still has both poles.