Levers

A Lever is a Rigid body free to move about a single point which may cause a load to move with an applied force

Sum of moments Fendt demo

  1. all the masses are the same
  2. You may only Remove masses
  3. start on the right hand side
  4. how can we balance the meter stick,
  5. what happens next

So we did this in the virtual world, where does it happen in real life ?

List examples of 'levers' the simplest machines.

follow on here

http://sites.google.com/site/giantscience/science/physics/forces

The Fulcrum center Lever

Sciscors

The Load center Lever

Nutcracker wheelbarrow

The Effort center Lever