A presentation that introduces basic magnetic ideas such as poles and fields. It shows images of magnetic materials, including the Earth's magnetic field and how it affects solar winds and the aurora borealis. Electromagnets are then introduced, as well as examples of their uses including reed switches, burglar alarms and electric bells. There is a video link at the end.

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Starter ###37,"Electricity and Circuits"###40,"Fields: gravitational and electrical"###44,"Space"###45,"Primary Physics" - Starter

  1. 17 Pages
  2. MAGNETS AND ELECTROMAGNETS
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