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Why does a balloon inflate when air is blown into it ?

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LAKHMIR SINGH & MANJIT KAUR-FORCE AND PRESSURE.-EXERCISE
  1. Name any two devices used in everyday life which work on the existance...

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  2. If a vacuum is created between two Magdeburg hemispheres joined togeth...

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  3. Why does a balloon inflate when air is blown into it ?

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  4. Name the substance whose weight produces atmospheric pressure.

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  5. Where is the pressure greater , 10 m below the surface of the sea or 2...

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  6. What force acting on an area of 0.5 m^2 will produce a pressure of 500...

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  7. Can a liquid exert pressure sideways ?

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  8. State whether the following statement is true or false: Milk i...

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  9. State whether the following statements are true or false : b) A drin...

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  10. Fill in the following blanks with suitable words: a) To draw water f...

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  11. Fill in the following blanks with suitable words: b) If the two forc...

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  12. Fill in the following blanks with suitable words: c) Force could be ...

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  13. Fill in the following blanks with suitable words: d) Force has magni...

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  14. Fill in the following blanks with suitable words: e) A force arises ...

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  15. Fill in the following blanks with suitable words: f) A charged body ...

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  16. Fill in the following blanks with suitable words: g) The north pole ...

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  17. Fill in the following blanks with suitable words: h) Force acting on...

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  18. Fill in the following blanks with suitable words: i) The pressure ex...

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  19. Fill in the following blanks with suitable words: j) A drinking stra...

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  20. Fill in the following blanks with suitable words: k) Atmosphere pres...

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