Mechanical Advantage

Mechanical Advantage (MAMA) is the amplification of force by a mechanical device and expressed as the ratio of output force (FoF_o) over input force (FiF_i), or MA=Fo/FiMA=F_o/F_i. 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

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