Iron, Cobalt and Nickel all live next door to each other in the Periodic Table. This might suggest that ferromagnetic or naturally occurring strongly magnetic materials might be something to do with the arrangement of electrons, also that electricity and magnetism are linked together.
The image was our attempt in a Year 10 class to photograph the pattern of iron filings from two unlike poles using my mobile phone camera.
The rest of this post is a series of links to a site called Absorb Physics.
Click on the links and work through the questions and animations.
- Moving Wires and Motors
- Current from Magnets
- Producing Electricity
It starts you off with the basic ideas, and walks you through everything you need to know about magnetism. Enjoy.