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伽利略在 1583 年就已经知道,单摆的摆动周期不变,虽然每次摆动的 幅度变小,但是每次摆动所花的时间不变。我们以前的那种大摆钟,用的就是这个原理。单 摆摆动的圆频率,等于 ,g 是重力加速度,L 是摆的长度。或者,如果您不习惯圆频 率,我们可以用周期来表示,单摆摆动的周期是 ,L 的单位是长度,g 的单位是长 度除以时间的平方,带进去,得出的周期的单位就是时间。
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owner: bian222 - (no access) - 地震力是怎么算出来的111.pdf, p12


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