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Why is the opening of a dropper very nar...

Why is the opening of a dropper very narrow ?

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NAVNEET PUBLICATION-FORCE AND PRESSURE-QUESTION BANK
  1. Describe a simple experiment to demonstrate atmospheric pressure.

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  2. Explain the working of an ink dropper.

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

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

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

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  6. How does the doctor's syringe work ?

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

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  8. Define buoyant force.

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

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  10. A lemon sinks in a glass filled with water but it floats when we stir ...

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  11. State Archimedes' principle.

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  12. Write proper word in the blank space : According to Archimedes' prin...

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  13. Using the formula for the magnitude of the buoyant force, state under ...

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  14. Using the formula for the magnitude of the buoyant force, state under ...

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  15. Using the formula for the magnitude of the buoyant force, state under ...

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  16. State the applications of Archimedes' principle.

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  17. If a spring balance is used to weigh a body, will the weight of the bo...

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  18. What is density of a substance ? Obtain its SI unit.

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  19. What is relative density of a substance ?

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  20. A plastic cube is released in water. Will it sink or come to the surfa...

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