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高中物理中某些特定的知识对一部分学生而言掌握起来比较费力,在作业或考试中学生往往感到棘手,这时一些由实际应用中总结得到的经验规律,提炼成小口诀,往往取到事半功倍的效果.口诀一动尺变短、动钟变慢高中物理选修3-4《相对论简介》一章的学习对高中学生而言算是一个难点,关于狭义相对论的两个推论更是学得似懂非懂,这章的考试要求均为A级要求,所以不妨归纳出的口诀处理有关长度的相对性和时间的相对性这类问题.长度的相对
Some of the specific knowledge in high school physics is more difficult for some students to master. In the homework or examinations, students often feel intractable. At this time, some empirical rules summed up from practical applications are refined into small gongs, often with less effort. The effect is that the vocabulary is shortened and the clock is slowed. High school physics elective 3-4 The “Introduction to Relativity” chapter is a difficult point for high school students. The two inferences about the special theory of relativity are more like learning and understanding. The examination requirements of this chapter are all Class A requirements, so it may be instructive to deal with such issues as the relativity of length and the relativity of time.