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

The density of water is 1000 kg/m³ and the density of copper is 8900 kg/m³. Which of the following statements is incorrect?

A. = 8.9

B. = 8.9

C. = 8.9

D. = 8.9

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

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

Two different bodies are completely immersed in water and undergo the same loss in weight. Is it necessary that their weights in air should also be the same? Explain.