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v-t图象在中学物理中应用十分广泛。其独特的优点在于能直观、形象地反映物理规律,表达物理过程,内涵丰富,形式灵活多变。对于一些问题,应用已有定理、公式求解很麻烦甚至难于得出正确结论,而利用v-t图象,则思路清晰,过程简洁,常能起到事半功倍的效果,对于提高解题能力有十分重要的意义。为此,笔者就自己在教学中的一些体会,谈谈v-t图象在解决有关中学物理问题中的作用。
The v-t image is widely used in middle school physics. Its unique advantages lie in that it can intuitively and vividly reflect the laws of physics and express physical processes. It has rich connotations and flexible forms. For some problems, using existing theorems and formulas to solve the solution is very troublesome or even difficult to draw correct conclusions. Using vt images, the idea is clear, the process is concise, and often can have a multiplier effect. It is very important for improving problem-solving abilities. significance. For this reason, the author discusses some of his experiences in teaching and talks about the role of v-t images in solving physics problems in middle schools.