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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

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1.

What instrument is used for measuring atmospheric pressure?

  Barometer

  Hygrometer

  Hydrometer

  Sphygmomanometer

  Half-n-half Clue
 

2.

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
 

3.

1 Pascal = 1 _______ m-2

  Joule

  Dyne

  Newton

  Erg

  Half-n-half Clue
 

4.

_______ states that the product of the pressure and volume of a fixed mass of gas is constant provided the temperature is unchanged.

  Charles' Law

  Boyle's Law

  Avogadro's Law

  Dalton's Law

  Half-n-half Clue
 

5.

2 Pa = _______ dynes cm-2

  200000

  2e-05

  0.2

  20

  Half-n-half Clue
 

6.

21 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

  0.67 bar

  21  bar

  6.0  bar

  2.33  bar

  Half-n-half Clue
 

7.

Pressure is defined as

  mass × acceleration

  force / area

  mass / volume

  force × distance

  Half-n-half Clue
 


 
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