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考虑了用双车法演示牛顿第二定律实验中被忽略的因素,理论分析得出了斜面倾角与小车质量等因素的关系,并通过实验验证了小车质量发生变化后需要重新调节倾角的结论,同时指出在实验中应如何选择实验器材减小小车质量的变化对实验的影响.
Considering the neglected factors of Newton ’s second law experiment by two - car method, the relationship between the inclination angle and the quality of the car is theoretically analyzed. The conclusion that the car needs to be readjusted after the quality of the car is changed is verified by experiments. At the same time, it is pointed out that how to choose the experimental equipment to reduce the impact of the change of trolley quality on the experiment in the experiment.