论文部分内容阅读
高中物理教材中配有大量的插图,其中包含丰富的物理知识.复习过程中,笔者从教材中的两幅插图出发,挖掘图中特点,总结其中规律,既复习了有关知识,又培养了学生的多种能力.不仅摆脱了题海战术,而且提高了学生的积极性,收到了良好的教学效果.一、知识归纳图1、图2分别是等量异种点电荷的电场线和等势面分布图,其特点如下:1.场强、电势特点1两电荷连线上:中点场强最小(但不等于零),关于中点
High school physics textbooks with a large number of illustrations, which contains a wealth of physical knowledge.In the review process, the author starting from two illustrations in the textbook, digging the characteristics of the map, summarizes the laws, not only review the relevant knowledge, but also to train students Not only get rid of the sea tactics, but also improve the enthusiasm of students, received a good teaching effect.First, the knowledge induction Figure 1, Figure 2 are the same amount of different points of charge electric field lines and equipotential distribution Figure, which features are as follows: 1. Field strength, potential characteristics of a charge on the two connections: the mid-field minimum intensity (but not equal to zero), on the midpoint