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在高中物理问题中,若遇到匀速圆周运动、简谐运动、波动、交流电等问题均属周期性多解问题,在没有约束条件时,这类问题皆有无数组解,学生在解答时,由于考虑问题不周到,常会漏解,从而失去解的完备性.这类问题在高考物理试题中时有出现,反映学生对物理规律的理解程度、分析与综合能力以及思维层次的高低.因此掌握解答此类题型的方法和技巧是十分重要的,本文略举数例说明之.
In the high school physics problem, if we encounter the problem of uniform circular motion, simple harmonic motion, wave motion, alternating current, etc., it is a periodic multiple solution problem. When there is no constraint condition, there is no array solution for this kind of question. When the student answers, Due to inconsiderate problems, they often missed the solution and lost the completeness of the solution. Such problems often appear in the physics test of the college entrance examination, reflecting the students’ understanding of the physical laws, the ability to analyze and integrate, and the level of thinking. It is very important to answer such questions and methods. This article gives a few examples.