Week11 Draft3

Magnetism accounts for the properties of magnets and their effect on forces and charges, as well as currents, resulting in a magnetic field. Each magnet is made of two magnetic poles that are called the north magnetic pole and the south magnetic pole. Like poles repel and unlike poles attract. This is true for all magnets, regardless of their size. The poles are therefore inseparable. Unmagnetized pieces of iron can be induced to become magnetic. This is done when the iron is heated and cooled or tapped between two poles. What occurs on the molecular level is that tiny fragments of the iron align themselves to have one of their poles meeting the unlike pole of the magnetic material. Eventually, the entire material can overall become magnetic.