lessons that use Neodymium disk magnet

title description rating post date author
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:...

Average: 4 (4 votes)
30 Jan 2013 guy Faraday motor
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 is...

Average: 3.2 (6 votes)
25 Jan 2013 guy safety pin motor
An Electric Screw Motor

This lesson gives instructions for one of the simplest and most popular designs for a homemade motor. It can be used as an in-class demonstration, or a hands-on activity for students, or a take-home kit. In any of these modes, it offers a wonderful introduction to the working...

Average: 4 (4 votes)
25 Jan 2013 guy screw motor
Minimalist Motors


Building a simple motor is much easier than most people realize. All it takes is a battery, a magnet and a piece of wire. This lesson reviews some simple motors and demonstrates a minimalist design constructed from a button cell battery, some wire, and a small but str...

Average: 5 (2 votes)
26 Jan 2013 guy