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初中物理中的一些所谓的难题,往往就是所需的数学知识比较多.本文具体解析几例利用几何知识处理初中物理问题的方法.1利用圆的知识解题例1(第二十四届大同中学杯复赛)如图1所示直角三角板ABC的边长BC=a,AC=b,开始时AB边靠在y轴上,B与坐标原点O重合.今使A点沿y轴负方向朝O点移动,B点沿x轴正方向移动,可知三角板从图一所示的初始位置到图2所示终止位置的过程中,C
Some of the so-called problems in junior high school physics often require more mathematical knowledge.This paper analyzes several examples of the use of geometric knowledge to deal with the physics problem of junior high school.1 Using the circle of knowledge to solve the case 1 (twenty-fourth Datong Middle School Cup Rematch) As shown in Figure 1, the side length of the right triangle a, bc = a, AC = b, the beginning of the AB side of the y-axis, B coincides with the origin of coordinates O. Now point A negative direction along the y-axis O point move, B point along the x-axis positive direction, we can see the triangular plate from the initial position shown in Figure 1 to the end position shown in Figure 2, C