Mechanical Energy Equivalents

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Mechanical Energy Equivalents

kilowatt-hours of electricity is equivalent to the mechanical energy in each of the following systems:

The space shuttle travelling at miles per hour.

A pound travelling at miles per hour.

hours of hard continuous work by a strong plow horse (average power output, 1 horsepower!).

A dropped from a height of miles (falling through a vacuum, just before it hits the ground!).

Continue on to:

Chemical Energy (batteries, foods, and fuels)
Thermal Energy (heat, cold, and melting ice)
Worldwide Energy Use (homes, huts, igloos, and yurts)
Exercise (running, walking, swimming, and biking)
Pollution (smog, global warming, and acid rain)

NOTE: You can change the number of kilowatt-hours at the top of each page and see how the energy equivalents change in response (press [Tab] after you've made your change to recalculate the other values on the page). You can also change the number in any of the output boxes and press [Tab] to recalculate all the other values on the page, including the kilowatt-hours. Or go back to the main calculator page to start again.

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