MAGNETISM

Magnetism is a non-contact force that works at a distance.

Magnets are objetcs that attract other objects made of magnetic materials.

Magnets create a magnetic field. A magnetic field is the area near a magnet that has enough power to attract things.

Magnets have two poles, a north pole (N) and a south pole (S).

Opposite poles of magents attract each other.

Like poles of magnets repel each other.

There are different types of magnets:

           Permanent magnets:

                                 Natural magnets are magnetic materials found in the ground, for example magnetite.

                                 Artificial magnets are man-made from metals, for example neodymium or ferrite magnets

           Temporal magnets

                                Electromagnets are man-made temporary magnets. They are created when an electric current move around an ion object. They can be found in many electrical appliances, for example computers, doorbeels or automatic doors.