Q7 of 13 Page 22

Volume of an object is 20 cm3 and the mass in 50 g. Density of water is 1 gcm-3. Will the object float on water or sink in water?

Condition for object to sink or float:


● If density of object is greater than that of water, object sinks.


● If density of object is lesser than that of water, object floats.


Given data:


Volume of object = 20 cm3


Mass of object = 50 g


Density of water = 1 gm-3


Density of object



= 2.5 g/cm3


Since the density of object is greater than that of water, object sinks.


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