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 ...

and industrial tools. A hands-on demonstration explains how levers function through balancing weights on a fulcrum and how interlocking gears are essentially a system of spinning levers.

A crowbar is an example of a first order lever that puts the load closer to the fulcrum - this gives it more power to move a load. When the fulcrum is moved nearer the load it takes less effort to ...

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.