Magnets and Magnetism 5.19.14. Magnetic repulsion and attraction  Magnets act like electrons do – –A north pole of a magnet will repel the north pole.

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Presentation transcript:

Magnets and Magnetism

Magnetic repulsion and attraction  Magnets act like electrons do – –A north pole of a magnet will repel the north pole of another magnet. –A south pole of a magnet will repel the south pole of another magnet. –A north pole of a magnet will attract the south pole of another magnet.

Magnetic fields   The field lines always point away from the north pole and toward the south pole.  The field is strongest at the poles.  It is weaker in the middle of the magnet.

Magnetism and electricity   Motors use electrical energy to turn it into mechanical energy –“ m otors m ake m echanical m otion ”   Generators use mechanical energy to turn it into electrical energy –“ g enerators g enerate electricity ”

Question:

Mark an X on the area(s) where the magnetic field is the strongest.