试题与答案

小明同学在探究“浮力的大小等于什么（阿基米德原理）”时，做了如图所示的实验，四步

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题型：选择题

题目：

小明同学在探究“浮力的大小等于什么（阿基米德原理）”时，做了如图所示的实验，四步实验中弹簧秤的示数F1、F2、F3、F4之间的大小关系是（　　）

A．F2－F3＝F4－F1　　

B．F1＝F4　F2＝F3

C．F1＝F2＝F3＝F4

D．上述结论都不正确

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A

考点：浮力产生的原因
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