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学生学习物理时,其中涉及的物理现象、物理规律、物理变化过程既可以用文字来描述,也可以用数学表达式来表示,还可以用图象来描述。这种利用图象表述物理规律、解释物理现象、解决物理问题的方法就称之为图象法。图象法不仅可以使物理概念清楚、物理过程清晰、各物理量之间的函数关系更明确,还可以更恰当地表达出用文字难以表达的内涵。所以,利用图象法解物理题可以降低解题的难度,避免复杂的运算过程,最终提高做题的快捷度和准确度。
When students study physics, the physical phenomena, physical laws and physical changes involved in them can both be described in words or in mathematical expressions, and they can also be described by images. This method of using images to express physical laws, interpret physical phenomena, and solve physical problems is called image law. The image method not only makes the concept of physics clear, the physical process is clear, the function relations among the physical quantities are more definite, but also the connotation difficult to express in words can be expressed more appropriately. Therefore, the use of image method to solve physical problems can reduce the difficulty of solving problems, to avoid complex computing processes, and ultimately improve the speed and accuracy of doing the questions.