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在用单摆法测量重力加速度时,如果不注意一些细节,就会产生出较大的实验误差(即使在仪器选择恰当的情况下)。而许多教科书中虽然注意到了这些问题,但对于具体如何操作才能更好地减小测量误差并没有给出具体的方法。下面,笔者就这些问题作一讨论。一、测量摆长的问题对于摆长的测量,教科书中总是告诉操作者先测量线长;再测量摆球的直径;最后用线长加上摆球半
In the pendulum method of measuring the acceleration of gravity, if you pay attention to some of the details, will produce a larger experimental error (even in the case of the instrument selection is appropriate). Although many textbooks have noticed these problems, no specific method is given for how to reduce the measurement error better. Below, I make a discussion on these issues. First, the measurement of the problem of swing length For the measurement of the swing length, the textbook always tells the operator to measure the length of the line; then measure the diameter of the swing ball;