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Unit 2 lessons 1 2 3
| Question | Answer |
|---|---|
| Work | The transfer of energy to an object by using a force that causes the object to move in the direction of the force. |
| Energy | The capacity to do work. |
| Power | The rate at which work is done. |
| Kinetic Energy | The energy of an object due to an objects motion. |
| Potential Energy | The energy of an object has because of the position, condition, or chemical composition of an object. |
| Mechanical Energy | the sum of an objects kinetic energy. |
| Machine | A device that helps do work by changing the magnitude and/or direction of an applied force. |
| Mechanical Advantage | A number that tells how many times a machine multiplies input force. |
| Mechanical Efficiency | a quantity that measures the ratio of work output to work input in a machine. |
| lever | a simple machine that pivots from a fixed point |
| fulcrum | the fixd point on a lever |
| wheel and axel | a simple machine connedcted to a small cylandril object |
| ppulley | a simlple machine with a wheel that holds a rope or cable |
| inclined plane | a ramp |
Created by:
18shelpl1210
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