论文部分内容阅读
对于高中学生实验“验证机械能守恒定律”,尽管必修本和乙种本用了不同的方法去求落体速度,却都保留了一个共同的选带条件:“从几条打上点的纸带中挑选第一、二两点间的距离接近2mm”的纸带进行测量。这个选带条件究竟是否需要呢?
For the high school student’s experiment “Verification of the conservation of mechanical energy”, although the compulsory and the B type used different methods to determine the velocity of the falling body, they all retained a common band selection condition: “From several strips of paper that are marked The distance between the first and second points is approximately 2mm. Does this election condition need it?