What are magnets used for

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What are magnets used for?
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Magnets

• What are some uses of magnets?
• Magnets are used to make electric motors and
  generators. We use these electric motors and
  generators in telephones, lights, electric heat,
  television and computers.
• Some items that use electromagnets are car
  crushers, scrap metal sorters, Maglev trains,
  computers, doorbells, tape recorders, telephones,
  etc.

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Maglev Trains

• Maglev trains use super conducting magnets in the
  track and on the underside of the train to
  float above the track.
• Maglev trains use magnetic repulsion.
• Maglev trains can travel very fast, up to 480
  km/h (300 mph).

For more information - http//www.o-keating.com/hs
r/maglev.htm
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Separating materials

• Sometimes magnets are used to sort magnetic and
  non-magnetic materials. Examples of magnets
  being used as separators are
• Metals separated from ore

• Food manufactures us magnets to keep small metal
  filings from machinery from getting into food.
• Sweets and drinks dispensing machines use magnets
  to separate coins from slugs that are put into
  their machines.

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At home

• We use magnets to hold things up or to pick up
  small things
• sewing pins
• electric can openers
• Magnets can hold things to the refrigerator.

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Compasses

• Magnets are also used in compasses to show
  attraction and repulsion. Magnetized compasses
  are used to detect underground metal pipes. 

A magnetic compass helps us in direction
finding. Compasses always points towards the
magnetic north pole