Effort
This is an old revision of this page, as edited by Ed Poor (talk | contribs) at 20:03, November 30, 2008. It may differ significantly from current revision.
Effort is the expenditure of physical and/or mental powers which are required to produce something worthwhile, often referring to hard work, great insight or overcoming difficulty.
It may also apply to the product of the work, so that a teacher may say "that essay was a great effort
In classical mechanics, effort is the force orenergy that is applied to a machine for the accomplishment of useful work.