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School Physics Quiz : Pressure

Answer the following questions based on the change of state and latent pressure.

 Formats Info Page Quiz Review
Multiple choice

1.

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 = 5 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
 1.102 × 104dynes cm-2 1.080 × 106dynes cm-2 6.664 × 104dynes cm-2 1.020 × 107dynes cm-2

Half-n-half Clue

2.

The average atmospheric pressure at sea level is 760 mm Hg. If the relative density of mercury is 13.6, then the air pressure can support _______ m of vertical length of a water column at sea level.
 0.76 101396 10336 10.336

Half-n-half Clue

3.

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 between 745 and 760 mm Hg 745 mm Hg

Half-n-half Clue

4.

_______ is a type of barometer that consists essentially of a thin metal box exhausted of air.
 Manometer Aneroid Anemometer Hydrometer

Half-n-half Clue

5.

If the density of liquid A (carbon tetrachloride) is 1.6 g cm-3 and its height hA = 15.0 cm, then the density of oil B of height hB = 30 cm in the U-tube is about
 0.80 g cm-3 1.25 g cm-3 3.20 g cm-3 0.31 g cm-3

Half-n-half Clue

6.

A _______ measures the pressure in terms of the difference in fluid levels between the vertical arms of a glass U-tube.
 Barometer Manometer Sphygmomanometer Hydrometer

Half-n-half Clue

7.

To measure the atmospheric pressure, the space (labeled A) above the mercury level in a barometer tube is
 filled with water filled with nitrogen filled with air essentially vacuum

Half-n-half Clue

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