Physical Science #3
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Created by:
RonWorster on December 13, 2011
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13 terms
Terms | Definitions |
|---|---|
 Work | The transfer of energy to an object by the application of a force that causes the object to move in the direction of the force. |
| Power | A quantity that measures the rate at which work is done or energy is transferred. |
| Joule | A unit in the SI system used to express the amount of work or energy; equal to a N x M |
| Horsepower | A unit used in the U.S. customary system to express power; equal to 746 watts. |
| Watt | A unit used in the SI system to express the amount of power, equal to 1 Joule per second. |
| Energy | The capacity to do work. |
| Potential Energy | The energy due to the position, shape, or condition of an object. |
| Gravitational Potential Energy | The energy that an object has because of its height relative to the earth surface. |
| Kinetic Energy | Energy that an object has due to its motion. |
| Elastic Potential Energy | Energy that an object or system has due to the distortion in the volume and/or the shape of the material. Rubber bands and springs are good examples of objects that can have this type of energy. |
| Mechanical Energy | The sum of kinetic and potential energies. |
| Non mechanical Energy | Types of energy such as sound, light, and heat. |
| Law of Conservation of Energy | The total amount of energy in the universe never changes, although energy may change from one form to another. |
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