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In physics, magnetism is a force that can attract (pull closer) or repel (push away) objects that have a magnetic material like iron inside them (magnetic objects). In simpler words it is a property of certain substances which pull closer or repel other objects.
Magnets[edit | edit source]
Magnetism can be made by a permanent magnet, or by electricity in a wire. This is called an electromagnet. When magnets are put near magnetic objects, the magnet and the object are pulled toward each other. This is called magnetic attraction. Magnets can also repel (push away) other magnets. Most objects that are attracted to magnets have iron in them. Most other metals, such as aluminium, are not attracted to magnets.