Magnets and Magnetism

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Magnets and Magnetism

• 5.19.14

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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.

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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.

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Magnetism and electricity

• Motors use electrical energy to turn it into
  mechanical energy
• motors make mechanical motion
• Generators use mechanical energy to turn it into
  electrical energy
• generators generate electricity

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