Magnetism

Why do Magnets Stick Together? Magnets have a magnetic field that surrounds them. This field is what causes the attraction and repulsion forces that we can feel when we play with magnets. All magnets have two areas of strongest force, called poles. The field is strongest around the ends which are called poles. Each magnet has one north pole and one south pole. Like poles repel, and opposite poles attract.

Electricity to Magnetism Moving electricity creates magnetic forces. These are called electromagnets which can actually be turned on and off. Moving magnetic fields create electric forces. This is how generators work.

Types of Magnets Temporary Magnets Permanent Magnets A magnet that keeps its magnetic properties for a short time Examples: Electromagnet Metallic Materials Permanent Magnets A magnet that keeps its magnetic properties for a long time Examples: Lodestone Bar Magnet Earth

Magnets have BOTH a N and a S pole, no matter how many times you “chop it up.”

The Earth is a magnet! Magnetic lines of force around the earth are like the field lines around a giant bar magnet.

WATER IS POLAR LIKE A MAGNET! WATER is a MAGNET! The water molecule behaves like a magnet because of distribution of charged particles in the molecule! WATER IS POLAR LIKE A MAGNET!

Magnetic Effects Aurora – Colorful light display caused by collisions between charged particles from the sun interacting with particles in Earth’s atmosphere. VIDEO 1 VIDEO 2