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图像已成为一种特殊的物理语言和工具。利用各种函数图像解决物理问题是物理解题最有效的方法之一,用图像法解题具有简明、快捷、准确等优点,可以避免繁杂的中间运算过程,甚至还可以解决用解析法无法解决的问题。由于速度—时间图像是高中阶段较早接触到的图像,能否较好地指导学生利用它来解决问题关系到学生以后的学习。本文速度以时间—图像及其应用实例,来说明要用图像解决物理问题,先得识图,还要会根据解题需要作图,最后才能根据图像所揭示的物理规律解决题设问题。
Image has become a special kind of physics language and tool. The use of various functional images to solve physical problems is one of the most effective methods of physical problem solving. The method of image method solving has the advantages of conciseness, quickness and accuracy, so as to avoid the complicated intermediate calculation process and even solve the problem of using analytic method The problem. Because the speed-time image is the image exposed earlier in high school, whether it can better guide students to use it to solve the problem is related to the students’ later learning. The speed of this paper takes the time-image and its application examples to illustrate that it is necessary to solve the physical problems by using images, obtain the knowledge first, and then make the drawings according to the need of solving the problems. Finally, we can solve the problems according to the physical laws revealed by the images.