NSO Science Olympiad Online Mock Test Class 9 Set A

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Question 1

Question

A lump of ice floats in water as shown in the figure.

Which of the following statements is correct?

Answer
The pressure difference between the lower and the upper surfaces of the lump of ice gives rise to an upthrust equal to its weight.
The ice has a greater density than water.
The lump of ice floats because the area of its lower surface is larger than the area of its upper surface.
The mass of water displaced by ice is equal to the upthrust.