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图像问题能检测学生灵活处理物理新情景问题的能力,是近几年高考的热点。图像问题考查知识和规律的形式灵活多样,常见的图像有v-t、x-t、a-t、F-t、B-t、Φ-t、E-t、I-t、E-x、I-x等。图像问题分类:(1)由给定的图像分析物理过程;(2)由给定的物理过程选出正确的图像并求解相应的物理量。常用的规律:应用高中所学的知识判断图像的截距、斜率、包围面积的物理意义等。常见题型:力学图像、电磁学图像。一、力学图像问题类型:由给定的图像分析运动过程并选出正
Image problems can detect students’ ability to deal flexibly with new situations in physics. It is a hot spot in college entrance examination in recent years. There are many forms of knowledge and law in examining the image problems. Common images are v-t, x-t, a-t, F-t, B-t, Φ-t, E-t, I-t, E-x, I-x and so on. Image Problem Classification: (1) Analyze the physical process from a given image; (2) Select the correct image from a given physical process and solve for the corresponding physical quantity. Common law: the use of high school knowledge to determine the intercept of the image, the slope, the physical meaning of the enclosed area. Common problems: mechanical images, electromagnetics images. First, the type of mechanical image problem: Analysis of the movement from the given image and select positive