Magnetism

What is Magnetism?

Magnetism is a special force that makes things pull together or push apart. It comes from something called a magnetic field. You can see this field when you sprinkle iron filings around a magnet—they line up and show the shape of the field!

Metals and Magnets

Some metals, like iron, cobalt, and nickel, are very friendly with magnets. They are pulled strongly toward magnets and can even become magnets themselves! But other metals, like aluminium and copper, don’t care much about magnets at all.

Early Discoveries

A long time ago, people found special stones called lodestones that could pull iron toward them. These stones are made from a mineral called magnetite. Ancient thinkers in Greece and India wrote about these stones. In China, people used lodestones in early compasses to help find directions.

Magnets in Nature

The Earth itself acts like a giant magnet! This is why compasses point north. Scientists learned this after many years of studying magnets and electricity. They found out that electric currents can make magnetic fields, linking electricity and magnetism together.