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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.

5 bars = _______ Pascals

  500000

  0.0005

  5e-05

  50000

  Half-n-half Clue
 

2.

1 Pascal = 1 _______ m-2

  Joule

  Dyne

  Newton

  Erg

  Half-n-half Clue
 

3.

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.

  1000

  100

  100000

  10000

  Half-n-half Clue
 

4.

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 air

  filled with water

  Half-n-half Clue
 

5.

3 Pa = _______ dynes cm-2

  3e-05

  300000

  30

  0.3

  Half-n-half Clue
 

6.

What instrument is used for measuring atmospheric pressure?

  Barometer

  Sphygmomanometer

  Hydrometer

  Hygrometer

  Half-n-half Clue
 

7.

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

  15 mm Hg

  760 mm Hg

  745 mm Hg

  between 745 and 760 mm Hg

  Half-n-half Clue
 


 
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