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:
“If he does really think that there is no distinction between virtue and vice, why, Sir, when he leaves our houses let us count our spoons.”
—Samuel Johnson (1709–1784)
“This is no rune nor symbol,
what I mean is it is so simple
yet no trick of the pen or brush
could capture that impression;
what I wanted to indicate was
a new phase, a new distinction of colour.”
—Hilda Doolittle (1886–1961)
“After the planet becomes theirs, many millions of years will have to pass before a beetle particularly loved by God, at the end of its calculations will find written on a sheet of paper in letters of fire that energy is equal to the mass multiplied by the square of the velocity of light. The new kings of the world will live tranquilly for a long time, confining themselves to devouring each other and being parasites among each other on a cottage industry scale.”
—Primo Levi (1919–1987)
“But the relationship of morality and power is a very subtle one. Because ultimately power without morality is no longer power.”
—James Baldwin (1924–1987)