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Magnetism

Vocabulary List for Magnetism:

Magnetic Domain
Electromagnet
Electromagnetic Induction


Section Summary:

Magnets
  • All magnets have a north pole and a south pole.
  • Like magnetic poles repel each other and unlike magnetic poles attract each other.
  • A magnet is surrounded by a magnetic field that exerts a force on other magnets.

Magnetic Materials
  • Individual atoms are magnets in magnetic materials such as iron, cobalt, and nickel.
  • Magnetic domains contain atoms with their north or south magnetic poles pointing int he same direction.
  • The magnetic domains in a permanent magnet have their magnetic poles aligned.

Electromagnetism
  • An electric current is surrounded by a magnetic field.
  • An electric current can be produced by the relative motion of a magnet and a wire loop.
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