Suppose you have a big aquarium in your living room. When you put a wooden plate in the water with a rock firmly attached to the top of the plate, the water level will change. Take this new level as a reference. What happens to this level when you turn the plate upside down and the rock is under the plate?
A.level will increase
B.level may increase or decrease
C.level will decrease
D.nothing
IS question
2007-10-20 3:48 am
回答 (2)
2007-10-23 4:23 am
✔ 最佳答案
D. nothingThe water level will not change.
The assumption is no air is trapped in the plate upside down, and the plate with the rock still float on water.
As the weight of the wooden plate with a rock is fixed, the weight of water displaced is equal to the weight of the wooden plate with a rock, the volume of water displaced is the same no matter how the wooden plate is positioned (normal or upside down).
I hope this can help your understanding. :)
2007-10-20 4:01 am
B.level may increase or decrease
收錄日期: 2021-04-13 14:01:07
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