What is LEVER?

One of the simplest machines. It may be considered as a rigid beam pivoted at a point called the fulcrum, a load being applied at one point in the beam and an effort, sufficient to balance the load, at another. Three classes of lever may be distinguished: 1 fulcrum between effort and load; 2 effort between fulcrum and load; and 3 load between fulcrum and effort. See machine, mechanical advantage, velocity ratio,

Link to This Definition

Did you find this definition of LEVER helpful? You can share it by copying the code below and adding it to your blog or web page.
Edited and fact checked by Pam: Google +