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现行的多数资料书及参考答案中对波动图像类题目解析或参考答案都以平移法为标准.作者发现质点振动法解题更全面,应用范围更广,只要理解具体机理后解题其实更快.本文解决波动图像类题目全部用质点振动法,以此展示振动法解题的独特之处.一、对机械波的描述机械波的特性总结为三个特点:①波不停地在扭动,同时向外传播;②波源启振后,远离波源的点总是在紧跟其靠近波源的临近点的振动趋势;③波是由大量质点构成,且构成波的所有质点只上下做简谐振动.
Most of the current information books and reference answers to the question of the resolution of the fluctuating image class are based on the translation method. The author found that the particle vibration method solves the problem more comprehensively and has a wider application range, as long as the specific mechanism is solved, the problem solving is actually faster In this paper, the problem of vibration method is solved by solving the problem of the vibration method by using the particle vibration method in all the topics of this paper.Firstly, the characteristics of the mechanical wave are summarized as three characteristics: (1) the wave is constantly twisting while (2) After the wave source starts to oscillate, the point far away from the wave source is always closely following the vibration trend of the nearer point near the wave source. The wave is made up of a large number of particles and all the particles that make up the wave only make simple harmonic vibrations.