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说明:该演示器取材容易,是用废弃的饮料瓶做的,成本低,可见度好,不易损坏,使用时间较长,综合性强,能一瓶多用,可做的实验有:实验1:演示测定液体对容器底部和侧面都有压强方法:将瓶的底部和侧边的三个瓶口用橡皮膜扎好(图1),倒入适量的水,原来拉平的橡皮膜都向外凸起,并且底部的这个比侧面的两个凸出较多,如图2所示(比沿海版第5页图13-9分甲、乙两容器做得快和对比性强,且书中乙容器取材较难)。
Description: The demonstrator is easy to draw, is made of discarded beverage bottles, low cost, visibility is good, not easy to damage, use a long time, comprehensive, can use more than one bottle, experiments can be done: Experiment 1: Demo Determine the pressure of the liquid on both the bottom and the sides of the container: tie the bottom of the bottle and the three sides of the bottle with a rubber membrane (Figure 1), pour in the appropriate amount of water, and the original flattened rubber film will protrude outward. , and the bottom of the two than the side of the two more convex, as shown in Figure 2 (in comparison to the coastal version of the fifth page of Figure 13-9 points A, B two containers do faster and more contrastive, and the book B container It is difficult to draw material.