mechanical advantage

• Rapport entre la force exercée par une machine et la force appliquée, permettant de multiplier ou d'amplifier une force grâce à un dispositif mécanique tel qu'un levier, une poulie ou un engrenage.

A measure of the force amplification achieved by using a tool, mechanical device, or machine system, calculated as the ratio of output force to input force.

1. Force multiplicationC1formal

   The ratio of the output force exerted by a machine to the input force applied to it, indicating how much a machine multiplies force.

   avantage mécanique

   • A lever provides a mechanical advantage by allowing a small force to lift a heavy load.
   • The mechanical advantage of a pulley system is calculated by counting the number of rope segments supporting the load.
   • Engineers design gears to achieve a specific mechanical advantage in machinery.