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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.

Soap bubbles are spherical in shape because

  air exerts equal pressure in all directions

  air trapped inside the bubble has low pressure

  spherical shape has the highest ratio of surface area to volume

  soap film has a low surface tension

  Half-n-half Clue
 

2.

6 bars = _______ millibars

  0.006

  60

  6000

  0.6

  Half-n-half Clue
 

3.

28 litres of a gas at a pressure of 2 bar are compressed to 7 litres without any change in the temperature. The final pressure of the gas is about

  8.0  bar

  1.75  bar

  0.50 bar

  28  bar

  Half-n-half Clue
 

4.

1 Pascal = 1 _______ m-2

  Joule

  Dyne

  Newton

  Erg

  Half-n-half Clue
 

5.

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

  100000

  10000

  100

  Half-n-half Clue
 

6.

6 Pa = _______ dynes cm-2

  60

  600000

  6e-05

  0.6

  Half-n-half Clue
 

7.

With increase in altitude, the pressure of the atmosphere

  remains constant

  increases

  decreases

  may increase or decrease

  Half-n-half Clue
 


 
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