Energy - Energy in Various Contexts - Distinction Between Energy and Power

Distinction Between Energy and Power

Although in everyday usage the terms energy and power are essentially synonyms, scientists and engineers distinguish between them. In its technical sense, power is not at all the same as energy, but is the rate at which energy is converted (or, equivalently, at which work is performed). Thus a hydroelectric plant, by allowing the water above the dam to pass through turbines, converts the water's potential energy into kinetic energy and ultimately into electric energy, whereas the amount of electric energy that is generated per unit of time is the electric power generated. The same amount of energy converted through a shorter period of time is more power over that shorter time.

Read more about this topic:  Energy, Energy in Various Contexts

Famous quotes containing the words distinction between, distinction, energy and/or power:

    “There is all the difference in the world between the criminal’s avoiding the public eye and the civil disobedient’s taking the law into his own hands in open defiance. This distinction between an open violation of the law, performed in public, and a clandestine one is so glaringly obvious that it can be neglected only by prejudice or ill will.”
    —Hannah Arendt (1906–1975)

    “At sundown, leaving the river road awhile for shortness, we went by way of Enfield, where we stopped for the night. This, like most of the localities bearing names on this road, was a place to name which, in the midst of the unnamed and unincorporated wilderness, was to make a distinction without a difference, it seemed to me.”
    —Henry David Thoreau (1817–1862)

    “The tendencies of the times favor the idea of self-government, and leave the individual, for all code, to the rewards and penalties of his own constitution, which work with more energy than we believe, whilst we depend on artificial restraints.”
    —Ralph Waldo Emerson (1803–1882)

    “The power of lying is much less than the power of “what is not to be discussed.””
    —Mason Cooley (b. 1927)