Khan Academy
Khan Academy: Mechanical Advantage (Part 2)
More on mechanical advantage, levers and moments. [6:50]
Khan Academy
Khan Academy: Lever
Answer the questions after watching a silent video demonstrating a lever. Also included are videos on mechanical advantage levers.
Other
Mocomi: Simple Machines: What Is a Lever?
The lever is one of the most basic forms of a machine. They help us lift loads with lesser effort. Even though this looks simple there are many things going on in order to lift the object easily. Check out this quick video clip. [1:08]
Mocomi & Anibrain Digital Technologies
Mocomi: What Is a Lever?
Find out about the lever, one of the most basic forms of a machine, which helps lift heavy objects with much less effort, through this fun and animated learning module.