Magnetism

Materials that are attracted to

Materials that are attracted to a magnet are called magnetic substances. Examples include iron, nickel, and cobalt. Materials that are not attracted t

Magnets have two poles

Magnets have two poles—North and South. Like poles repel each other, and unlike poles attract. A freely suspended magnet always points in the north-so

The area around a magnet where

The area around a magnet where its force can be felt is called the magnetic field. It can be seen by spreading iron filings around a magnet, which for

Earth behaves like a giant magnet

Earth behaves like a giant magnet with its own magnetic field. The magnetic south pole is near the geographic North Pole, and the magnetic north pole

An electromagnet is made by wrapping

An electromagnet is made by wrapping a coil of wire around a soft iron core and passing an electric current through it. It acts as a magnet only when