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Work/Simple Machines
Work and Simple Machines
| Term | Definition |
|---|---|
| Law of Conservation of Energy | Energy cannot be created or destroyed |
| Kinetic Energy | the energy an object has due to its motion |
| Potential Energy | stored energy that results from the position or shape of an object |
| work | Force exerted on an object that causes it to move |
| simple machines | one of the six basic types of machines, which are the basis for all other forms of machines |
| inclined plane | a slanted surface along which a force moves an object to a different elevation |
| wheel and axle | Two different sized circular objects that are attached together and turn as one. |
| wedge | A device that is thick at one end and tapers to a thin edge at the other end. |
| lever | A rigid bar that is free to move around a fixed point |
| fulcrum | The fixed point around which a lever pivots |
| screw | An inclined plane wrapped around a cylinder |
| pulley | A simple machine that consists of a rope that fits into a groove in a wheel |
| mass | the amount of matter in an object |
| force | A push or pull exerted on an object |
| direction | the path that a moving object follows |
| power | the rate at which work is done |
| Mechanical Advantage (MA) | the number of times that the machine increases an input force |
| Mechanical Efficiency | a comparison of a machine's work output with the work input |
| newton | SI unit of force |
| energy | the ability to do work |
Created by:
ferguslr
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