You have a rock a jug of water and a bucket . You place the rock in the bucket and then pour the water over it. What change of Shape would you expect to find and why?
Answers
Initially the bucket was empty and it did not contain any water in it.
Eventually the person put a rock inside it. This occupied some space out of the overall space present internally. When the person poured water into it, slowly and steadily that quantity of water also got into the bucket and it occupied some amount of space inside.
In this case, there will not be any change of shape in the rock when it is inside, as compared to what it was when it was outside. It will just settle on the base of the bucket and water will be surrounded.
Archimedes principle shows that when some amount of liquid gets displaced when water is continued to pour into a container, where there is already some space occupied by a stone or etc, then the amount of liquid displaced equals the weight of the solid.
However in this case, a jug of water is a very small quantity as compared to the overall quantity needed by a bucket to get fully filled up. So it would not be applicable.