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When we press the bulb of a dropper with...

When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to

A

pressure of water

B

gravity of the earth

C

shape of rubber bulb

D

atmostphere pressure

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MBD -HARYANA BOARD-FORCE AND PRESSURE-EXAMPLE
  1. Name the forces acting on a plastic bucket containing water held above...

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  2. A rocket has been fired upwards to launch a satellite in its orbit. Na...

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  3. When we press the bulb of a dropper with its nozzle kept in water, air...

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  4. Raman was surprised to see a camel walking easily barefooted on sand b...

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  5. By exerting force on anything:

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  6. Force is:

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  7. The food in the foodpipe is pushed forward during digestive process:

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  8. The force of friction on a moving object always acts:

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  9. While carrying luggage on the railway station a 'coolie' often rolls h...

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  10. The pressure applied by liquids …………..with the increase in depth.

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  11. What is common in following actions: kicking, hitting , lifting , pul...

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  12. What is force?

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  13. What is meant by pressure?

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  14. Explain with an example force can change the speed of an object. How d...

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  15. Give an illustration to show that a force can change the shape of the ...

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  16. Give an illustration to show that a force can produce change in both t...

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  17. Give one example where force changes the direction of a moving object.

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  18. What causes force to act?

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  19. What happens when force is applied in the direction of motion?

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  20. What happens when force acting on an object are in opposite direction ...

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