在高考考点中,“功”是一个基本概念。“动能定理”是一个重点、难点,也是热点.我们知道,做功离不开力,做功的过程也必然伴随着能量的转化; 动能定理中又离不开力做功,同时也必然与动能的变化紧密联系在一起.本文中,笔者将结合例题, 从“力”与“能”的角度来分析求解有关“功”和“动能定理”的问题. In the college entrance examination, “work” is a basic concept. The “kinetic energy theorem” is a key, difficult, and hot topic. We know that doing work is inseparable and that the process of doing work must also be accompanied by the transformation of energy; the kinetic energy theorem is inseparable from the effort to do, and it is also bound to change with kinetic energy. They are closely linked. In this article, the author will analyze the problems related to “work” and “kinetic energy theorem” from the perspective of “force” and “energy” with examples.