lessons that use knife switch

title description rating post date author
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. They...

4.10345
Average: 4.1 (29 votes)
25 Jan 2013 guy rail gun with magnets
Faraday Motor

This lesson shows how to construct and operate a modern version of the first electric motor, invented by Michael Faraday. It serves as an excellent demonstration or hands-on activity to show the basic principles behind the operation of an electric motor.

Learning goals:...

3.7
Average: 3.7 (10 votes)
30 Jan 2013 guy Faraday motor