【摘要】 介绍了用物理摆测量重力加速度的实验方法.根据物理摆的简谐运动周期与摆锤到转轴之间的距离的关系,找到合适的摆锤位置,使物理摆正挂与倒挂时的振动周期值相等,从而得到比较精确的重力加速度值.更多还原

【Abstract】 The experiment of measuring the gravitational acceleration using physical pendulum was introduced.Based on theoretical analysis,the relationship between the harmonic oscillation period and the distance from the bob to the pivot was obtained experimentally.When properly locate the two bobs on the pendulum,an equal period could be found with the pendulum hanging right way up or upside down,which could be used to calculate a more accurate value of the gravitational acceleration.更多还原