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近几年来中考物理图象选择题的知识覆盖面进一步加宽,选项的迷惑性、干扰性加大,题干的综合性加强,图象设计更加新颖别致.解答时要要注意正确理解图象的内涵:图象所代表的物理过程,坐标轴所代表的物理量及其单位,图线与坐标轴所围面积的物理意义,图线上一些特殊点(如图线的端点、极值点及两条图线的交点等)的物理意义等.另外,善于从整体出发,通盘考虑,就有可能通过一些特殊的分析和判断方法,快速、准确地选出答案.
In recent years, the choice of exam physics image multiple choice to further widen the coverage of knowledge, the options of confusion, increased interference, the overall improvement of the title, the image design is more novel and unique. To pay attention to the correct understanding of the image Connotation: the physical process represented by the image, the physical quantities represented by the axes and their physical units, the physical meaning of the area enclosed by the plot line and the coordinate axis, some special points on the plot line The intersection point of the bar graph line, etc.), etc. In addition, good at starting from the whole, taking into consideration, it is possible through some special analysis and judgment methods, quickly and accurately select the answer.