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CBSE Class 9 Answered

why some objects sink or float when placed on the surface of water
Asked by Navpankaj Jain | 20 Nov, 2013, 12:07: PM
answered-by-expert Expert Answer
The object floats on water when its density is less than that of water. Because the bayount force is more than that of its own weight.
 
Example:
The density of wood is less than that of water. Therefore wood floats in water.
 
The object sinks in water if its density is less than that of water. Because the bayount force is less than that of its own weight.
 
Example:
Iorn has more density than water, so a nail of iorn will sink in water.
Answered by Komal Parmar | 20 Nov, 2013, 01:58: PM

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