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19 Cards in this Set
- Front
- Back
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Energy |
Capacity of a physical system to perform work |
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Kinetic Energy |
The energy an object possesses due to its motion |
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Mechanical Energy |
The sum of potential energy and kinetic energy |
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Potential Energy |
The energy possessed by a body by virtue of its position relative to others, as well as other factors. |
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Power |
Rate of doing work. It is equivalent to an amount of energy consumed per unit time. |
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Work |
Done when a force that is applied to an object moves that object. |
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What are the kinds of energy? |
Light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, potential energy, kinetic energy, etc. |
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What are some sources of kinetic energy? |
Windmills, chemical reactions, etc. |
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What are some sources of potential energy? |
Ball hanging above ground, car on hill, etc. |
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Law of Conservation of Energy |
The total energy of an isolated system remains constant-it is said to be conserved over time. |
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Work Formula |
Force*distance
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Work Unit |
Joules |
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Power Formula |
Work/time |
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Power Unit |
Watts |
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PE Formula |
Work/time |
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PE Unit |
Joules |
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KE Formula |
Work/time |
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KE Unit |
Joules |
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Watts Formula |
J/s |
