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在物理学中,两个物理量间的函数关系,不仅可以用公式表示,而且还可以用图像表示.物理图像是数与形相结合的产物,是具体与抽象相结合的体现,它能够直观、形象、简洁地展现两个物理量之间的关系,清晰地表达物理过程,正确地反映实验规律.因此、利用图像分析物理问题的方法有着广泛的应用.近年高考图像出现的频率较高,尤其在对机械波知识点的考查中更是这样,题目基本出现在选择题中,其应用主要体现在以下四点:
In physics, the functional relationship between two physical quantities can be expressed not only by formulas but also by images. Physical images are the combination of numbers and shapes, and they are the combination of concrete and abstract. They can be intuitive and visual. The relationship between the two physical quantities is presented succinctly to express the physical process clearly and accurately reflect the experimental laws. Therefore, the method of analyzing the physical problems using images has a wide range of applications. In recent years, the frequency of the college entrance examination images is high, especially in the right. This is even more true in the examination of mechanical wave knowledge points. The topics basically appear in multiple-choice questions, and their applications are mainly reflected in the following four points: