物理学驻波教学实践 大学论文.doc

______ 学 院 本科毕业论文(设计) 题 目 驻波教学实践 院 系 物理与电子工程学院 专 业 物理学 姓 名 学 号 2 学习年限 2009年9月至2013年6月 指导教师 申请学位 理学学士 2013年05月30日 驻波教学实践 学生:陈海 指导教师:宫建平 摘 要: 本文通过分析传统教学法中驻波演示实验的不足，利用Matlab制作动画模拟驻波并分析驻波形成的机制，加深了学生对驻波的理解。在同一动画画面中同时显示出两列振幅、频率相同传播方向相反的行波及由它们合成的驻波，由此可以观察任意时刻及空间任意点的运动状态，从而对驻波形成的机制有一个准确、形象的认识。同时利用计算机分别对不同振幅、不同波长的两列传播方向相反的波的叠加情况进行了模拟和分析，从而加深了对驻波形成条件的理解，直观的说明了在不满足驻波形成条件时构不成驻波的原因。通过绘图及动画演示，弥补了传统教学法中演示实验的不足，并以此对驻波教学实践进行了有益的探索。 关键词:多媒体；动画；驻波  Standing wave teaching practice Author’s Name: CHEN Hai Tutor: GONG Jian-Ping ABSTRACT: In this paper, through the analysis of the deficiency of the traditional teaching method in the standing wave experiment, using Matlab animation simulation of standing wave and mechanism analysis of standing wave formation, enhance the students understanding of standing wave. In the same animation screen also showed that the wave amplitude, frequency of the same two reverse direction and their synthesis, standing wave, which can be observed at any time and any movement and space, cognitive mechanism of a standing wave is formed with an accurate, image.At the same time, the specific analysis of Matlab programming software for standing wave form different amplitude, different wavelengths of the situation, so as to enhance the understanding of the conditions of a standing wave is formed, in does not satisfy the conditions not form standing waves cause.Through the presentation of graphics and animation, make up the shortage of experimental demonstration of traditional teaching method in teaching practice, and to the standing wave is a useful exploration. KEYWORDS：Multimedia ; Animated drawing; standing wave 目 录 引 言 1 1 驻波与传统教学法 2 1.1 驻波 2 1.2 传统教学法 3 2 运用Matlab分析驻波 5 2.1 弦线上驻波形成的机制 5 2.2 驻波的形成条件 8