高一学生实验五用单摆测定重力加速度一、下列各项叙述中,能说明本实验目的的是:[　　]A.验证单摆振动的等时性B.验证单摆周期与摆长的平方根成正比C.利用单摆的周期公式测当地的重力加速度D.验证单摆周期与摆球的质量无关二、下列仪器中,本实验需要使用的是:[　　]A.铁架... High school students’ experiment five uses single pendulum to measure the acceleration of gravity. In the following descriptions, the purpose of this experiment can be explained as follows: [] A. Verify the isochronism of single pendulum vibration B. Verify the single pendulum period and the square root of the pendulum length. In proportion to C. Use the pendulum’s periodic formula to measure the local gravitational acceleration D. Verify that the single pendulum cycle is independent of the pendulum mass. 2. In the following instruments, this experiment needs to use: [] A. iron frame...