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某力的功是高中物理中一个很重要的物理量,也是很多命题中最后的求解对象。但是不少同学对“功”的理解不够,导致在求力的功,尤其是变力的功或者涉及两物体之间有内力在做功时往往容易出错,下面就从两个高中学生易错的例子出发,认真分析总结,找出易错点,提高预警能力和应试技巧。
The power of a certain force is a very important physical quantity in high school physics and also the final object of solution in many propositions. However, many students do not comprehend “Gong ” enough, resulting in the power of seeking power, especially the power of change or involve the two objects have internal force in the work often error prone, the following from two high school students easy Wrong example, careful analysis and summary, to find easy to make mistakes, improve early warning ability and examination skills.