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Why some people feel their ears popping ...

Why some people feel their ears popping at the top of a mountain.

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Atmospheric pressure decreases with altitude. At the top of a mountain, it becomes less than the interval pressure in the ear. Hence, some people feel their ears popping at the top of a mountain.
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  1. What atmospheric pressure ?

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  2. State the relation between 1 atmosphere and the pascal.

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  3. Why some people feel their ears popping at the top of a mountain.

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  4. Why some people feel breathless as they climb higher and higher on a m...

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  5. We can enjoy a cold-drink or fruit juice with the help of a straw but ...

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  6. People are often advised not to carry fountain pens while travelling b...

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  7. Why do some people have earache when they travel by an aeroplane ?

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  8. Explain why a person may bleed from the nose when at a great height ab...

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  9. How much pressure do we carry on our heads ? Why don't we feel it ?

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  10. When a rubber sucker is pressed onto a flat glass surface, it sticks t...

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  11. Describe a simple experiment to demonstrate atmospheric pressure.

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  12. Explain the working of an ink dropper.

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  13. Why is the opening of a dropper very narrow ?

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  14. What is the characteristics of the cap of eye drop bottles ?

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  15. Explain the working of a syringe used by children when they play with ...

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  17. Explain the origin of pressure due to a gas enclosed in a container.

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  18. Define buoyant force.

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  19. State the factors on which the buoyant force depends.

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