Mechanical Advantage () is the amplification of force by a mechanical device and expressed as the ratio of output force () over input force (), or . A simple example of mechanical advantage is Archimedes's famous lever quote: "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world."
A mechanical advantage less than one will increase the output speed, whereas a mechanical advantage greater than one will increase the force.
Resources to Learn About Mechanical Advantage
Deeper Knowledge on Mechanical Advantage
Learn about gears and cogs
Broader Topics Related to Mechanical Advantage
The fundamental nature and properties of matter, energy, and motion