A pair of pliers are class 1 levers which we use very often but rarely recognize them as such. With a Class 2 lever, the fulcrum is moved to one end of the lever, with the load in the middle and ...

When the fulcrum is moved nearer the load it takes less effort to move it. Second order levers close second order leverA bar featuring a pivot that is at the end away from the user; the load is in ...

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 ...