Author's Suggestions for Basic Electromagnets

title description rating post date author
Iron and Magnets

This lesson provides general backround on magnets, and suggests several classroom activities involving magnets and iron filings. These include 

  • identifying magnetic materials
  • staging paper clip battles
  • finding the north pole of a magnet
  • ...
Average: 3.4 (5 votes)
25-Jan-13 guy bar magnet with field lines
Classroom Rail Gun

This lesson introduces two homemade versions of the "electric rail gun", a device that uses the principles of electromagnetic propulsion to drive a rod or axle along a pair of conducting rails. Both versions are suitable for in-class demonstration or hands-on activities....

Average: 4 (15 votes)
25-Jan-13 guy rail gun with magnets
Safety Pin Motor

This lesson describes a simple motor that can be constructed in 15 minutes with inexpensive materials. It involves all the basic principles of motors involving magnetic force, electromagnets, and commutators (rotating switches common in many commercial motors). This device...

Average: 5 (1 vote)
25-Jan-13 guy safety pin motor