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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.

3 Pa = _______ dynes cm-2

  3e-05

  300000

  30

  0.3

  Half-n-half Clue
 

2.

pressure - manometer
One arm of a glass U-tube is open to the atmosphere, whereas the other vertical arm is connected to a gas supply. The difference in levels of mercury (density = 13.6 g cm-3) between the vertical arms of the U-tube manometer is h = 2 cm. If the atmospheric pressure is 760 mm Hg and the gravitational acceleration is 9.8 m s-2, then the pressure of the gas is about

  1.040 × 106dynes cm-2

  1.061 × 104dynes cm-2

  2.666 × 104dynes cm-2

  1.016 × 107dynes cm-2

  Half-n-half Clue
 

3.

The pressure at a point in a liquid is proportional to the _______ of the liquid and the depth of the point.

  gravitational acceleration

  force

  area

  density

  Half-n-half Clue
 

4.

With increase in altitude, the pressure of the atmosphere

  remains constant

  increases

  may increase or decrease

  decreases

  Half-n-half Clue
 

5.

Pressure is defined as

  force / area

  force × distance

  mass / volume

  mass × acceleration

  Half-n-half Clue
 

6.

Barometers modified to measure the height above sea level are called

  altimeters

  hydrometers

  manometers

  sphygmomanometers

  Half-n-half Clue
 

7.

6 bars = _______ Pascals

  6e-05

  0.0006

  600000

  60000

  Half-n-half Clue
 


 
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