Simple Machines Vocabulary
About this set
Created by:
JoelFritz on December 14, 2010
Subjects:
freshman science waverly high school
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17 terms
Terms | Definitions |
|---|---|
 a force applied over a distance | work |
| unit for work | joule |
| a bar that pivots on a point | lever |
| is a lever connected to a shaft | wheel and axel |
| point that a lever pivots on | fulcrum |
| flat sloping surface | incline plane |
| has a wheel that is free to spin on an axle | pulley |
| has the fulcrum located between the effort and resistance arm | first class lever |
| has the resistance arm between the fulcrum and the effort arm | second class lever |
| has the effort arm between the fulcrum and the resistance arm | third class lever |
| something that is used to change the direction or amount of force | simple machine |
| the amount of energy in an object in motion | kinetic energy |
| amount of energy because of an objects position | potential energy |
| kinetic energy formula | 1/2mv2 |
| potential energy formula | mgh |
| is the kinetic energy and potential energy added together | mechanical energy |
| energy cannot be created or destroyed | conservation of energy |
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