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PS Ch 12 vocabulary
| Question | Answer |
|---|---|
| the transfer of energy to the body by the application of a force that cause the body to move in the direction of the force | work |
| a quantity that measures the rate at which work is done or energy is transformed | power |
| a quantity that measures how much a machine multiplys a force or distance | mechanical advantages |
| one of the six basic types of machines, which are the basis of all other forms of machines | simple machine |
| a machine made of one or more simple machines | compound machine |
| energy that an object has because of the position, shape, or condition of the object. | potential energy |
| the energy of a moving object due to the objects motion. | kinetic energy |
| the ammount of work an object can do because of the objects kinetic and potential energies. | mechanical energy |
| measures the ratio of useful work output to work input. | efficiency |