I WONDER - What Is A Lever?

A lever is a simple machine consisting of a rigid bar that pivots around a fulcrum, providing mechanical advantage to lift heavy objects with less effort. Examples include seesaws and crowbars. Levers are categorized into three types based on the positions of the fulcrum, effort, and load. They are prevalent in everyday tools like scissors and pliers, and even in biological systems, such as the human arm, where the elbow acts as a fulcrum.

What is a lever and how does it function?

Explain the principle of mechanical advantage in relation to levers.

Describe the role of the fulcrum in a lever system.

Can you provide examples of levers found in everyday life?

How do your arms function as levers when lifting objects?