Principle of Floatation

Author:R P Goyal & S S Shome
8th ICSE
IMPORTANT

Important Questions on Principle of Floatation

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IMPORTANT

The diagram given below show a body floating in three different liquids. A, B and C at different levels.
Which liquid has the highest density ?

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MEDIUM
IMPORTANT

The diagram given below show a body floating in three different liquids. A, B and C at different levels.

 Which liquid has the least density ?

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EASY
IMPORTANT

The weight of a body is more than the buoyant force experienced by it, due to a liquid. The body will

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A body experiences the same buoyant force when it floats or sinks in water.

EASY
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When a body is immersed in a liquid, the buoyant force experienced by the body is equal to the volume of the liquid displaced by it.

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The diagram given below show a body floating in three different liquids. A, B and C at different levels.
In which liquid does the body experience the greatest buoyant force ?

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MEDIUM
IMPORTANT

Explain why it is easier to lift a stone under water than in air.

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For a floating body, how is its weight related to the buoyant force ?