What term is used to describe a lever's pivot point?

The term that describes a lever's pivot point is "fulcrum." In the context of a lever, the fulcrum serves as the central point around which the lever arm rotates. It is crucial because it significantly affects the mechanical advantage and efficiency of the lever system. The position of the fulcrum determines how much effort is needed to lift a load; by providing a pivot point, the lever can amplify force or distance, allowing a smaller effort to lift a larger weight depending on the distances from the fulcrum to the load and the effort. Understanding the role of the fulcrum is fundamental in studying levers and their applications in mechanical systems.