“帕斯卡裂桶实验”的演示,激发了学生“探究影响液体压强大小因

“帕斯卡裂桶实验”的演示,激发了学生“探究影响液体压强大小因素”的兴趣。他们设计了如下图所示的实验探究方案,图(a)(b)(d)中金属盒在液体中的深度相同。实验测得几种情况下压强计的U形管两侧液面高度差的大小关系是h4h1h2h3

1)实验中液体内部压强的大小通过                  反应出来。

2)实验中液体内部压强最小的是     图。

3)比较图a和图d可以得出的结论是:                   

答案

1)压强计U型管两边液面的高度差

(2)c

3)液体内部的压强与液体的密度有关,在不同液体的同一深度处,液体的密度越大,压强越大。

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