封闭系统内力功之和与能量的关系  

Relation Between Power Work Sum and Energy in Closed System

作　　者：段洪成[1] 

机构地区：[1]包头职业技术学院人文与艺术设计系,内蒙古包头014030

出　　处：《包头职业技术学院学报》2009年第1期27-28,共2页Journal of Baotou Vocational & Technical College

摘　　要：功是能量转移与转化的量度。两物体间彼此做功时,彼此做功之和等于负值时,表明体系的机械能不守恒,计算表明,它等于机械能与其它形式能量的转化量。Work is the measurement of energy transferring or conversion.When work is applied between two objects,the sum of which is negative,this shows that the mechanical energy is not in conservation.By calculation,the work is equal to the mechanical energy and other transferred energy.

关 键 词：功 能量 能量转化 能量转移 

分 类 号：O313[理学—一般力学与力学基础]