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Energy is a measure of how long we can sustain the output of power, or
how much work we can do.There are two kinds of energy: potential and kinetic.
Potential energy is waiting to be converted into power. Gasoline
in a fuel tank, food in your stomach are examples of potential energy.Kinetic
energy is energy a body possesses because it is in motion.
Work is the application of a force over a distance. Work
is equal to the product of the force and the distance through which it produces
movement.
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