Question

What simple machine consists of a bar that rotates around a fixed point called the fulcrum?

Answer 1

lever

A lever is a simple machine that consists of a bar that rotates around a fixed point called the fulcrum. There are three classes of levers. Depending on its class, a lever may have an ideal mechanical advantage that is less than, equal to, or greater than 1. First-class levers also change the direction of the input force.