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School Physics Quiz : Pressure


Answer the following questions based on the change of state and latent pressure.

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Multiple choice

Your Performance  

1.

If the average atmospheric pressure at sea level can support 10.34 m of vertical length of a water column, then its magnitude is about _______ Pa.
Assume density of water = 1 g cm−3 and gravitational acceleration = 9.8 m s−2.

  100000

  1000

  10000

  100

  Half-n-half Clue
 

2.

pressure - barometer
To measure the atmospheric pressure, the space (labeled A) above the mercury level in a barometer tube is

  essentially vacuum

  filled with nitrogen

  filled with water

  filled with air

  Half-n-half Clue
 

3.

Which is the 'odd one out'?

  Pa

  bar

  N

  mm Hg

  Half-n-half Clue
 

4.

_______ is a type of barometer that consists essentially of a thin metal box exhausted of air.

  Anemometer

  Hydrometer

  Manometer

  Aneroid

  Half-n-half Clue
 

5.

20 litres of a gas at a pressure of 4 bar are compressed to 5 litres without any change in the temperature. The final pressure of the gas is about

  1.25  bar

  16.0  bar

  20  bar

  1.00 bar

  Half-n-half Clue
 

6.

pressure - barometer
Air is trapped in the space (labeled A) above the mercury level in the tube of a barometer, which measures 745 mm Hg. If the atmospheric pressure is 760 mm Hg, then the pressure of the trapped air is

  745 mm Hg

  15 mm Hg

  760 mm Hg

  between 745 and 760 mm Hg

  Half-n-half Clue
 

7.

3 bars = _______ Pascals

  0.0003

  30000

  300000

  3e-05

  Half-n-half Clue
 


 
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