TyroCity

# grade11

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Why is the bottom of a ship made heavy?

Why is the bottom of a ship made heavy?

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

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

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

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

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What are the drawbacks of simple pendulum?

What are the drawbacks of simple pendulum?

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If a cork is released from the bottom of a jar filled with water, what will happen and why?

If a cork is released from the bottom of a jar filled with water, what will happen and why?

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

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

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

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

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A helium filled balloon rises to a certain height and then halts. Why?

A helium filled balloon rises to a certain height and then halts. Why?

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

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

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Explain why spokes are fitted in the cycle wheel.

Explain why spokes are fitted in the cycle wheel.

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Explain which one is more elastic- rubber or steel.

Explain which one is more elastic- rubber or steel.

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

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

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

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

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If the earth is struck by meteorites, the earth will slow down slightly. Why?

If the earth is struck by meteorites, the earth will slow down slightly. Why?

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If a pendulum clock is taken to a mountain top, does it gain or lose time?

If a pendulum clock is taken to a mountain top, does it gain or lose time?

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