Wednesday, December 5, 2018
What is ENERGY. Energy ideas and energy basics
The word energy is of greek origin. The prefix en means in or content and ergon means work. A change in an energy in an isolated system indicates the maximum amount of work that the system can theoretically produce in transition from state 1 to state 2.. Thus the energy can be defined as capacity to do work. In the International system of units SI THE UNIT OF ENERGY IS JOULE which is named after james pprescott joule. It is a derived unit. It is equal to the work done in applying a force of one newton through distance of one meter. The SI unit of energy per unit time is watt. Called as joule per second. Therefor one joule is one watt second and 3600 joule equal to one watt hour. Human being are massive amount of energy daily.
The word energy is of greek origin. The prefix en means in or content and ergon means work. A change in an energy in an isolated system in...