lever![click to hear](/images/speaker.jpg)
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.
bar ![click to hear](/images/speaker.jpg)
Rigid moving bar around the fulcrum on which an effort is exerted to lift the load.
load ![click to hear](/images/speaker.jpg)
Weight whose inertia exerts a force opposite to the effort exerted on the bar.
effort ![click to hear](/images/speaker.jpg)
Force exerted on the lever bar in order to shift the load.
pivot ![click to hear](/images/speaker.jpg)
Part providing an efficient fulcrum for the lever.
fulcrum ![click to hear](/images/speaker.jpg)
Point around which the lever pivots.