功的概念在高中物理中有非常重要的地位,它是研究能量转化及守恒的基础,是处理能量量问题的工具.理解功的意义,掌握功的计算方法和技巧十分关键,下面对功的概念进行一下探讨,希望对读者有所帮助.1恒力功与变力功1.1恒力功可用功的定义W=Fscosθ直接计算(s指力作用点的位 The concept of work has a very important position in high school physics, which is the basis for studying energy conversion and conservation and is a tool to deal with the issue of energy quantity. It is very important to understand the meaning of work, to master the calculation methods and skills of work, The concept of some discussion, hoping to help the reader .1 constant power and variable power 1.1 constant power available work definition W = Fscosθ direct calculation (s point of the force point