Bar magnet - A bar permanent magnet and has a north and a south pole at opposite ends of the bar., Pole - The area of a magnet that has the greatest magnetic field strength. Each pole is either north facing or south facing., Magnetic North - The Earth’s North Pole is actually a south pole, which is why the north poles of magnets point towards it., Permanent magnet - Solid material that produces a magnetic field., Repel - Force that pushes two like magnetic poles apart., Attract - Force that pulls two opposite magnetic poles together., Magnetic Filed Lines - Lines used to represent a magnetic field. A compass needle will always point along a field line. The lines are close together where the magnetic force is strong, and spread out where it is weak.  , Magnetism - A physical property of an object that shows attraction for iron. The magnetic object produces a magnetic field/force., Demagnetisation - Demagnetisation is when a magnet loses its magnetism and is unable to attract to metals. This is achieved by physical stress or through heating to a very high temperature., Electromagnet - Object (usually a coil of wire) that generates a magnetic field when a current passes through it., Compass - A device that determines the presence and direction of a magnetic field., Electric motor - An electric motor is an electrical machine that converts electrical energy into kinetic (movement) energy.,

Magnetism (AC)

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