The amount of useful work accomplished by a particular input of energy into a system is
A) Energy quality
B) Energy potential
C) Energy capacity
D) Energy efficiency
E) Energy loss

Question

Quizplus · Accepted Answer

Energy efficiency is the measure of how much useful work is accomplished by a given input of energy into a system. It is usually expressed as a percentage, with 100% meaning all of the energy input is converted into useful work. This measure is important for evaluating the effectiveness of energy systems and identifying areas for improvement.

The Amount of Useful Work Accomplished by a Particular Input