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利用图象坐标来进行定性分析和定量计算,是运用数学知识研究物理规律的有效方法.如力学中研究滑动摩擦力与压力之间的关系,热学中研究晶体和非晶体的熔化和凝固规律,光学中研究凸透镜成像时物距、像距和焦距之间的关系,电学中研究电流、电压、电阻之间的关系等.这些问题中均有各种物理量之间的函数关系,函数图象是分析解决此类问题的利器.图象坐标题在近年来各省市中考试卷中频频出现,本
The use of image coordinates for qualitative analysis and quantitative calculation is an effective method for studying physical laws using mathematical knowledge. For example, the relationship between sliding friction and pressure is studied in mechanics, and the melting and solidification laws of crystals and non-crystals are studied in thermal science. In optics, we study the relationship between object distance, image distance and focal length when imaging a convex lens, the relationship between current, voltage, and resistance in electrical studies. These problems have a functional relationship between various physical quantities. The functional image is Analyze the tool to solve this kind of problem. The image sitting title has appeared in the examination papers of various provinces and cities in recent years.