功和冲量同是高中物理中最基本的物理量,二者原本有着非常紧密的联系。但许多教师在教学过程中将它们割裂开来,一味强调定义和计算,结果学生虽然会计算功和冲量,但对两个概念及其关系并没有深刻理解。更重要的是功联系着动能定理,冲量联系着动量定理,学生没有理解好功和冲量及其关系,就无法灵活应用动能定理和动量定理解 Work and impulse are the most basic physical quantities in high school physics, and the two have very close relations. However, many teachers cut them apart during the teaching process, emphasizing the definition and calculation. As a result, although students will calculate the amount of work and impulse, they do not have a profound understanding of the two concepts and their relations. More important is the kinetic energy associated with the theorem, the impulse associated with the momentum theorem, students do not understand the merit and impulse and their relationship, we can not be flexible application of kinetic energy theorem and momentum theorem