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用厂家仪器演示惯性球时 ,由于 1 )弹片弹性不好 ;2 )支撑片不透明 ,小球不易放正 ;3 )小球易滚动 ,不易放稳 ;故成功率不高 .现介绍如下装置改进实验 .如图 1所示 ,取一个1 2 5 0 m L塑料饮料瓶 ,用橡皮筋将一钢锯条捆在饮料瓶上 .找一废录音磁带透明空盒盖 ,做成小球支撑片 .
Demonstration of the inertia ball with the manufacturer’s equipment, due to 1) elasticity of the shrapnel is not good; 2) the support film is not transparent, the ball is not easy to put positive; 3) the ball is easy to roll, not easy to stabilize; so the success rate is not high. Now introduce the following device improvements Experiment. As shown in Fig. 1, take a 1250m L plastic beverage bottle and use a rubber band to tie a steel saw blade to the beverage bottle. Find a waste audio tape transparent empty lid to make a small ball support piece.