In the following activity you're asked to lift one end of a relatively small obelisk three feet. You have a lever, a movable fulcrum, weights, and supporting stones at your disposal. Your goal is ...

When effort is used to push down on one end of the lever, the load on the other end goes up. This makes it easier to lift heavy objects because you can use the lever to help with the hard work.

(Class 2) place the fulcrum at one end of the lever and the effort at the other, with the load in the centre. The closer together the fulcrum and load are, the easier it is to lift the load.