Classes of Levers

A lever is a simple machine that helps lift or move heavy objects using a fulcrum.

1st class, 2nd class, and 3rd class.

A lever where the fulcrum is between the effort and the load, like a seesaw.

A lever where the load is between the fulcrum and the effort, like a wheelbarrow.

A lever where the effort is between the fulcrum and the load, like a pair of tweezers.

A seesaw.

A wheelbarrow.

A pair of tweezers.

To make it easier to lift or move heavy objects.

It determines the class of the lever and how much effort is needed to lift the load.