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自由落体的定性演示 (一)演示过程拴着牵线的十个垫圈,并排挂在夹线板下,垫圈下半部各夹着可坠脱的落体,从右至左编号为坠物1、坠物2…坠物10(图1虚线所示)演示时迅速下按启动螺丝,启动片下移压脱两侧挂线柱上的挂线(图2a),坠物1和脱销重物同时自由下落,当坠物1下落到1era时启动坠物2下落,坠物1仍继续下落,坠物2下落到1era时又启动坠物3…这样连续启动到坠物10,当坠物10下落到1era时,撞板销钉被脱销重物拉脱,撞板
Qualitative demonstration of free-fall (A) The demonstration process is tied to the ten washers of the strings, hanging side by side under the clamp plate. The lower part of the washer is equipped with a falling body that falls off from right to left, Object 2 ... Fall 10 (shown in phantom in Figure 1) When the demonstration is displayed, press the start screw quickly to start the downward movement of the hanging thread on the hanging pillars on both sides (Figure 2a). Simultaneously, When the falling object 1 falls to 1era, the falling object 2 falls, the falling object 1 continues to fall, the falling object 2 drops to 1era, and the falling object 3 is activated ... so that the falling object 10 is continuously started up. When the falling object 10 falls to 1era, the striker pin is off the weight off, hit the board