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在声波的教学中,由于学生知识结构的关系,对于声波性质的了解有一定的欠缺,为了让学生充分认识声波的特性,在实际教学过程中,通过对如下几个关系的认识,学生对知识的了解将会更加清晰、明了.1 声波的传播与波速的关系 在教材中,列出了声波在各种不同介质中的传播速度,以及它们随温度变化的情况,
In the teaching of sound waves, due to the knowledge structure of students, there is a certain lack of understanding of the nature of sound waves. In order to allow students to fully understand the characteristics of sound waves, in the actual teaching process, through the knowledge of the following relationships, students’ knowledge of The understanding will be clearer and clearer.1 The relationship between the propagation of sound waves and the speed of waves is given in the textbook, which lists the speed of propagation of sound waves in various media and how they change with temperature.