With a Class 2 lever, the fulcrum is moved to one end of the lever, with the load in the middle and the force at the other end. Every time you pick up a wheelbarrow you use a class 2 lever ...

A lever is a simple mechanism that uses a bar to pivot around a fixed point called a fulcrum. Levers can be joined together to form linkages. Simple linkages can be used to change the direction of ...

You have a lever, a movable fulcrum, weights, and supporting stones at your disposal. Your goal is to lift the obelisk using as few of the weights and support stones as possible.

First, there is the levcr ; the wheel and axle and pulley are but circular levers, and their action depends on the same principles as a straight bar having a weight, a power and a fulcrum.

He is known to this day for his statement: “Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.” The concept of leverage can, of course, be measured ...