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lever

System consisting of a bar pivoting on a fulcrum to lift a load. The amount of effort required is related to the position of the pivot and the length of the bar.

See lever in : french | spanish

bar

Rigid moving bar around the fulcrum on which an effort is exerted to lift the load.

load

Weight whose inertia exerts a force opposite to the effort exerted on the bar.

effort

Force exerted on the lever bar in order to shift the load.

pivot

Part providing an efficient fulcrum for the lever.

fulcrum

Point around which the lever pivots.