Q72 of 176 Page 127

If two equal weights of unequal volumes are balanced in air, what will happen when they are completely dipped in water? Why?

The two equal weights of unequal volumes which are balanced in air, will get imbalanced when they are completely dipped in water because due to their unequal volumes, they will displace unequal volumes of water and hence suffer unequal loss in weight.


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70

The diagram represents four measuring cylinders containing liquids. The mass and volume of the liquid in each cylinder are stated. Which two measuring cylinders could contain an identical liquid? (Picture)

A. W and X B. W and Y


C. X and Y D. X and Z

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Consider the following information in respect of four objects A, B, C and D:















Object



Density


(kg/m3)



Volume


(m3)



Mass


(kg)



A


B


C


D



8000


2000



2


4


4



4000


1000


2000



Which object would float on water?


A. A


B. B


C. C


D. D

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A body floats in kerosene of density 0.8 ×103 kg/m3 up to a certain mark. If the same body is placed in water of density 1.0×103 kg/m3, will it sink more or less? Give reason for your answer.