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机械波是各类考试必考的内容之一,且该章涉及知识点较多,内容也较抽象、复杂,对读图、作图和空间想象能力要求也很高.综观最新有关该部分的试题来看,尽管涉及该内容的难度不大,但试题情境设置新颖,考查角度灵活,致使得分率并不高.下面举几例与大家赏析. 例1如图1所示,一根柔软的弹性绳子右端固定,左端自由,A、B、
Mechanical wave is one of the requirements for examinations of various kinds of examinations, and the chapter deals with more knowledge points, more abstract and complex contents, and high requirements for reading, drawing, and spatial imagination. Looking at the latest questions about this part Looking at this, although the difficulty involved in this content is not great, but the test scenario is novel and the examination angle is flexible, resulting in a low score. Here are some examples to illustrate with everyone. Example 1 As shown in Figure 1, a soft elasticity The right end of the rope is fixed, the left end is free, A, B,