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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

1.

7 bars = _______ millibars
 70 0.7 0.007 7000

Half-n-half Clue

2.

Which is the 'odd one out'?
 mm Hg bar N Pa

Half-n-half Clue

3.

If the density of liquid A (carbon tetrachloride) is 1.6 g cm-3 and its height hA = 25.0 cm, then the density of oil B of height hB = 50 cm in the U-tube is about
 0.80 g cm-3 0.31 g cm-3 1.25 g cm-3 3.20 g cm-3

Half-n-half Clue

4.

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.
 10000 1000 100 100000

Half-n-half Clue

5.

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
 760 mm Hg 745 mm Hg between 745 and 760 mm Hg 15 mm Hg

Half-n-half Clue

6.

1 Pascal = 1 _______ m-2
 Newton Joule Dyne Erg

Half-n-half Clue

7.

With increase in altitude, the pressure of the atmosphere
 remains constant may increase or decrease increases decreases

Half-n-half Clue

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