Magnet
Definition 1 of 2
Pro Tip 1/3
Magnetism Basics
Understand that a magnet can attract or repel other magnets. When you bring two magnets close, they will either stick together or push apart.
Pro Tip 2/3
Magnetic Materials
Know that magnets only work with iron or metals like nickel and cobalt. My magnet won't stick to this copper coin because it's not a magnetic material.
Pro Tip 3/3
Magnetic Poles
Every magnet has two poles: north and south, which are opposites. The north pole of one magnet will be attracted to the south pole of another.