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Energy, Work, and Power
Energy, work, and power are common technical terms in physics that connect to common images in society. Energy is the capacity of a body to do work. In order to complete work, you need to have a source of energy. The term work connects with an activity being completed that involves both a force and a movement in the direction of the applied force. Power is the rate of doing work OR the rate of using the energy source over a specific time period.
Important Equations:
Energy, work, and power are common technical terms in physics that connect to common images in society. Energy is the capacity of a body to do work. In order to complete work, you need to have a source of energy. The term work connects with an activity being completed that involves both a force and a movement in the direction of the applied force. Power is the rate of doing work OR the rate of using the energy source over a specific time period.
Important Equations:
Work
Work acting over a straight line:
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Energy
Due to the fact energy is the capacity to do work, we can measure and calculate energy the same way we calculate work. Energy for straight line work:
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Power
The SI system (International System of Units) unit of measurement for power is the Watt, which connects with a rate of 1 Joule/sec. The English system base unit of power measurement is horsepower, which is equivalent to 735.7 Watts. Translational/Linear Motion: P=Fd/t
P=Mr/t
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