教材中是利用单摆测定重力加速度的 ,但重力加速度也可以用水滴的自由落体运动测定 ,这样既简单又容易 .在水龙头的正下方放一个盘子 (距龙头约5 0ｃｍ左右 ) ,用米尺测出管口距盘底的高度ｈ .让水龙头的水一滴一滴的落在盘子里 ,调整水龙头 ,让前一滴水滴到盘子而听到水声时 , The textbook uses a single pendulum to measure the acceleration of gravity, but the acceleration of gravity can also be measured by the free-fall motion of the water droplets. This is simple and easy. Place a plate (about 50 cm from the faucet) directly under the faucet and use a meter rule. Measure the height of the nozzle from the bottom of the plate. Let the water from the faucet fall on the plate, adjust the faucet, and let the previous drop drop to the plate and hear the sound of water.