Term
|
Definition
| Energy cannot be created or destroyed; it may be transformed from one form into another, but the total amount of energy never changes. In an ideal machine, where no energy is transformed into heat, work (input) = work (output) and Fd (input) = Fd (output). |
|
|
Term
|
Definition
| The percent of work put into a machine that is converted into useful work output. |
|
|
Term
|
Definition
| The property of a system that enables it to do work. |
|
|
Term
|
Definition
| Energy of motion, described by the relationship: Kinetic Energy = 1/2mv^2 |
|
|
Term
|
Definition
| A device such as a lever or pulley that increases (or decreases) a force or simply changes the direction of force. |
|
|
Term
|
Definition
| The stored energy that a body possesses because of its position. |
|
|
Term
|
Definition
| The time rat of work: Power = Work/Time |
|
|
Term
|
Definition
| The unit of power, the joule per second. |
|
|
Term
|
Definition
| The product of force and the distance through which the force moves: W = Fd |
|
|
Term
|
Definition
| The work done on an object is equal to the energy gained by an object: Work = (the change in) KE |
|
|
