配套习题- 漂浮物体的4个规律 -【青果学苑】

1/5单选题

难度：

1.将一个物体分别放入水和酒精中，在酒清中漂浮，在水中也漂浮，则（　　）

A	它在水中受到的浮力大
B	它在酒精中受到的浮力大
C	它在水和酒精中受到的浮力一样大
D	无法确定

正确答案：Qw==

54mp5L2T5ryC5rWu5oiW77yM5rWu5Yqb6YO9562J5LqO6Ieq6Lqr6YeN5Yqb77yM5omA5Lul5Zyo5Lik56eN5ray5L2T5Lit5omA5Y+X5rWu5Yqb5aSn5bCP55u4562JLiA8YnI+5pWF6YCJQy4g

2/5单选题

难度：

2.轮船从河里驶入海里，轮船将（　　）

A	上浮一些，受到的浮力变大
B	上浮一些，受到的浮力不变
C	下沉一些，受到的浮力变大
D	下沉一些，受到的浮力不变

正确答案：Qg==

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

3/5单选题

难度：

3.

两物体漂浮在液面上，若受到的浮力相等，则这两个物体一定（　　）

A	密度相等
B	体积相等
C	质量相等
D	露出液面的体积相等

正确答案：Qw==

PHA+5Lik5Liq54mp5L2T6YO95piv5ryC5rWu77yM5rWu5Yqb562J5LqO6YeN5Yqb77yM5rWu5Yqb55u4562J77yM5omA5Lul6YeN5Yqb5Lmf55u4562J77yM6YeN5Yqb55u4562J6LSo6YeP5Y2z55u4562JPGJyPuaVhemAiUMuPGJyPjwvcD4=

4/5单选题

难度：

4.有一木块漂浮在水面若向水中加一些盐，则（　　）

A	木块可能下沉
B	木块可能漂浮
C	木块一定下沉
D	木块一定漂浮

正确答案：RA==

5Zug5pyo5Z2X5Zyo5rC05Lit5ryC5rWu77yM5omA5Lul5rWu5Yqb562J5LqO54mp5L2T6Ieq6Lqr55qE6YeN5Yqb77yM55Sx5pyo5Z2X5omA5Y+X5rWu5YqbRjxzdWI+5rWuPC9zdWI+Pc+BPHN1Yj7mtrI8L3N1Yj5WPHN1Yj7mjpI8L3N1Yj5n5Y+v55+l77yM5rWu5Yqb5LiA5a6a5pe277yM5Yqg55uQ5ray5L2T55qE5a+G5bqm5Y+Y5aSn77yM5o6S5byA5ray5L2T55qE5L2T56ev5bCx5Y+Y5bCP77yM5o6S5byA5ray5L2T55qE5L2T56ev5Lmf5bCx5piv5pyo5Z2X5rW45YWl5rC05Lit55qE5L2T56ev77yM5omA5Lul5pyo5Z2X5Lya5LiK5rWu5LiA5Lqb77yM5Zug5q2k5pyo5Z2X5LiA5a6a5ryC5rWuLiA8YnI+5pWF6YCJRC4g

5/5单选题

难度：

5.

在盛有水的圆柱形容器内，放入物体乙，乙有1/3的体积露出水面，现在把甲放在乙物体上，物体乙刚好全部浸没，则甲乙两物体质量之比是（）

A	2:1
B	1:3
C	1:2
D	1:1

正确答案：Qw==

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