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用图象法解题可以避免繁杂的中间运算过程,具有简明快捷、准确和方法新颖独特等优点,况且有些物理问题在高中阶段只能用图象法解决,而图象中“面积”的应用对培养学生的物理能力大有裨益.在物理图象的学习和应用中,我们可以从坐标、斜率、截距、面积、交点、拐点等方面分析不同的图象所代表的物理意义,本文仅从v-t图象“面积”表示物体的位移出发,阐释图象面积的妙用.一、巧用v-t图象的面积,证明匀变速直线运动的两条规律例1证明作匀变速直线运动的物体,在相邻相等时间内
With the image method to solve the problem can avoid complicated intermediate computing process, with the advantages of concise and fast, accurate and novel and unique method, and some physical problems can only be solved by the image method in the high school stage, and the image Of the application of the physical ability to develop a great benefit to students in the study and application of physical images, we can analyze the physical meaning represented by different images from the coordinates, slope, intercept, area, intersection, inflection point, This article only from the vt image “area ” represents the object of displacement starting to explain the magical effect of the image area.First, the use of vt image area, to prove uniform speed linear motion of the two laws of Example 1 to prove uniform speed line Moving objects in adjacent equal time