功和能是物理学中的重要概念,功是过程量,能是状态量,二者虽然是两个完全不同的物理量,但它们之间有着紧密的联系.理解什么是“功”和“能”一个力作用在物体上,使物体在这个力的方向上移动了一段距离,这个力的作用就有了成效,力学中就说这个力对物体做了功,物体能够对外做功,我们就说这个物体具有能量,简称能.能量的单位与功的单位相同,都是焦耳(J).一个物体能够做的功越多, Work and energy are important concepts in physics. Work is the amount of process and can be state variables. Although they are two completely different physical quantities, they are intimately connected. Understanding what is “work” and “Force ” a force acting on the object, so that the object in the direction of this force to move a certain distance, the effect of this force has been effective, said that in mechanics, the power of the object to do the work, the object can work outside , We say that this object has energy, referred to as energy. The unit of energy is the same as the unit of work, which is Joule (J). The more work an object can do,