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प्रश्न
What is meant by the term buoyancy?
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उत्तर
The property of a liquid to exert an upward force on a body immersed in it is called buoyancy.
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संबंधित प्रश्न
In which direction does the buoyant force on an object due to a liquid act ?
What is the other name of buoyant force ?
Name the force which makes heavy objects appear light when immersed in a liquid.
Fill in the blank with suitable word :
It is the................. force which makes objects appear lighter in water.
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
body D having density 0.85 g m-3
The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Ans the following:
Will a piece of iron float or sink in water?
Why is a force needed to keep a block of wood inside water?
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
Write about buoyant force.
Salt water provides less buoyant force than freshwater.
