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# grade11

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A cork is floating in water. What is the apparent weight of the cork?
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A cork is floating in water. What is the apparent weight of the cork?

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How will you justify that stone is more rigid than iron?
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How will you justify that stone is more rigid than iron?

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A pendulum clock is taken to moon. Will it gain or lose time?
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A pendulum clock is taken to moon. Will it gain or lose time?

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How will you make difference between density and specific gravity of a body?
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How will you make difference between density and specific gravity of a body?

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Why is easier to lift a body in a liquid than in air?
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Why is easier to lift a body in a liquid than in air?

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What are centre of buoyancy and metacentre?
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What are centre of buoyancy and metacentre?

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What are the drawbacks of simple pendulum?
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What are the drawbacks of simple pendulum?

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Steel balls sink in water but they don’t sink in mercury. Why?
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Steel balls sink in water but they don’t sink in mercury. Why?

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A body is moving in a circular path with constant speed. Is this motion a simple harmonic?
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A body is moving in a circular path with constant speed. Is this motion a simple harmonic?

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A fan with blades takes longer time to come to rest than without the blades. Why?
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A fan with blades takes longer time to come to rest than without the blades. Why?

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A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?
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A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?

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What is the counterpart of the mass and force in rotational motion?
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What is the counterpart of the mass and force in rotational motion?

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Why is a horse more stable than a man?
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Why is a horse more stable than a man?

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A rigid, lighter than air balloon filled with Helium cannot continue to rise indefinitely. Why?
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A rigid, lighter than air balloon filled with Helium cannot continue to rise indefinitely. Why?

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During pregnancy, woman often develop back pains from leaning backward while walking. Why do they have to walk this way?
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During pregnancy, woman often develop back pains from leaning backward while walking. Why do they have to walk this way?

#physicsquestions #grade11
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