功与能是高中物理非常重要的知识点,是高中物理的基础,同时也是每年高考必考内容,也是高考重点考查的知识.然而学生在学习时经常对此内容中出现的概念和规律的理解不到位,对物体运动过程分析、受力分析不够准确,学生学习起来较吃力,在各类考试中丢分严重.有鉴于此,笔者总结了此知识点中常出错的题目加以分析,以期对读者有所帮助.一、对物体的受力分析不到位 Power and high school physics is a very important knowledge point, is the basis of high school physics, but also the annual college entrance examination will be the content, but also the college entrance examination focus of knowledge. However, students often learn the concepts and laws appear in this content understanding Not in place, the analysis of object movement process, the force analysis is not accurate enough, students learn more difficult, in all kinds of exams dropped serious .In view of this, the author summarizes the knowledge of the points often mistakes be analyzed in order to readers Help. First, the force analysis of the object is not in place