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Name the force which makes heavy objects appear light when immersed in a liquid.
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What is the scientific name of the 'upward force' acting on an object immersed in a liquid?
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What is meant by the term ‘buoyancy’ ?
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What causes buoyant force (or upthrust) on a boat ?
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An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
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Name the scientist who gave he magnitude of buoyant force acting on a solid object immersed in a liquid.
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Why does a block of wood held under water rise to the surface when released ?
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Fill in the blank with suitable word :
It is the................. force which makes objects appear lighter in water.
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What happens to the buoyant force as more and more volume of a solid object is immersed in a liquid ? When does the buoyant force become maximum ?
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Why do we feel light on our feet when standing in a swimming pool with water up to our armpits ?
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Define buoyant force. Name two factors on which buoyant force depends.
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What is the cause of buoyant force ?
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When a boat is partially immersed in water, it displaces 600 kg of water. How much is the buoyant force acting on the boat in newtons ? (g = 10 m s-2)
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When does an object float or sink when placed on the surface of a liquid ?
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If a fresh egg is put into a beaker filled with water, it sinks. On dissolving a lot of salt in the water, the egg begins to rise and then floats. Why ?
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A boy get into a floating boat.
What happens to the buoyant force on the boat ?
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Four cars A, B, C and D are moving on a levelled, straight road. Their distance-time graphs are shown in the given figure. Which of the following is the correct statement regarding the motion of these cars?
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A student draws a distance-time graph for a moving scooter and finds that a section of the graph is horizontal line parallel to the time axis. Which of the following conclusion is correct about this section of the graph?
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'When a hanging carpet is beaten with a stick, the dust particles start coming out of it'. This phenomenon can be best explained by making use of :
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