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由于机械效率涉及的物理量多,因而关于机械效率计算综合性强,错误率高。现对机械效率计算中常见错误作简要的分析,希望给学生一点帮助。一、总功错误使机械效率出错 1、动力移动距离错误使总功出错。
Since mechanical efficiency involves a large number of physical quantities, the mechanical efficiency calculation has a high comprehensiveness and a high error rate. A brief analysis of the common mistakes in the calculation of mechanical efficiency is presented, and it is hoped to give students some help. First, the total work error makes the mechanical efficiency error 1, the power movement distance error makes the total work wrong.