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Work energy + machin
| Term | Definition |
|---|---|
| Work | is the use of force or mental effort. |
| Energy | Is the ability to do work |
| Power | Is the rate at which work is done |
| Kinetic energy | Is the energy of motion |
| Potential energy | Is the energy an object has because of its position condition chemical composition |
| Mechanical energy | is the energy possessed by an object due its energy |
| Machine | Is any device that helps people do work by changing the way work is done. |
| Fulcrum | The point on which a lever pivots |
| Mechanical advantage | is the number of time the machine multiplies the input force. |
| Wheel and axle | Is a simple machine that is made of a wheel to a smaller cylindrical object the axle |
| mechanical efficiency | Is a comparison of a machine work output with the work input |
| Pully | Is a simple machine that has a grooved wheel that holds a rope or a cable |
| Lever | is a simple machine that has bar that pivots at a fixed point |
| Inclined plane | i a simple machine that is a straight slanted surface |