Chapter 14: Gases And Plasmas

62 Questions | Total Attempts: 610

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Chapter 14: Gases And Plasmas - Quiz


Questions and Answers
  • 1. 
    The energy source responsible for the motion of molecules that make up the atmosphere is
    • A. 

      Their own natural kinetic energy.

    • B. 

      The pressure caused by the weight of air.

    • C. 

      Atmospheric tides.

    • D. 

      Solar power.

  • 2. 
    A plasma differs from a gas in that
    • A. 

      A plasma differs from a gas in that

    • B. 

      It is hotter than a gas.

    • C. 

      It is electrically conducting.

    • D. 

      Its atoms are boosted to higher atomic numbers.

    • E. 

      All of these

  • 3. 
    Atmospheric molecules do not fly off into outer space because of
    • A. 

      Their relatively high speeds.

    • B. 

      Their relatively low densities.

    • C. 

      Earth gravitation.

    • D. 

      Cohesive forces.

  • 4. 
    About what percentage of the molecules that make up the atmosphere are below an aircraft that flies at an altitude of 6 kilometers?
    • A. 

      20%

    • B. 

      30%

    • C. 

      40%

    • D. 

      50%

    • E. 

      More than 50%

  • 5. 
    Atmospheric pressure is caused by the
    • A. 

      Density of the atmosphere.

    • B. 

      Weight of the atmosphere.

    • C. 

      Temperature of the atmosphere.

    • D. 

      Effect of the sun's energy on the atmosphere.

  • 6. 
    What is the approximate mass of a 1-square-centimeter column of air that extends from sea level to the top of the atmosphere?
    • A. 

      1 gram

    • B. 

      1 kilogram

    • C. 

      10 kilograms

    • D. 

      100 kilograms

  • 7. 
    The weight of a 1-square-meter column of air that extends from sea level to the top of the atmosphere is
    • A. 

      101 N.

    • B. 

      10,100 N.

    • C. 

      101,000 N.

    • D. 

      101,000,000 N.

  • 8. 
    A balloon is buoyed up with a force equal to the
    • A. 

      Weight of air it displaces.

    • B. 

      Density of surrounding air.

    • C. 

      Atmospheric pressure.

    • D. 

      Weight of the balloon and contents.

    • E. 

      All of these

  • 9. 
    As a helium-filled balloon rises in the air, it becomes
    • A. 

      Bigger.

    • B. 

      More dense.

    • C. 

      Heavier.

    • D. 

      All of these

    • E. 

      None of these

  • 10. 
    A bubble of air released from the bottom of a lake
    • A. 

      Rises to the top at constant volume.

    • B. 

      Becomes smaller as it rises.

    • C. 

      Becomes larger as it rises.

    • D. 

      Alternately expands and contracts as it rises.

    • E. 

      None of these

  • 11. 
    A one-ton blimp hovers in the air. The buoyant force acting on it is
    • A. 

      Zero.

    • B. 

      One ton.

    • C. 

      Less than one ton.

    • D. 

      More than one ton.

  • 12. 
    A common 5-liter metal can will float in air if it is
    • A. 

      Evacuated of air.

    • B. 

      Filled with a very large amount of helium.

    • C. 

      Thrown high enough.

    • D. 

      A can will not float in air unless the displaced air weighs more than the can and its contents.

  • 13. 
    In drinking soda or water through a straw, we make use of
    • A. 

      Capillary action.

    • B. 

      Surface tension.

    • C. 

      Atmospheric pressure.

    • D. 

      Bernoulli's principle.

    • E. 

      None of these

  • 14. 
    The air in this room has
    • A. 

      Mass.

    • B. 

      Weight.

    • C. 

      Energy.

    • D. 

      All of these

    • E. 

      None of these

  • 15. 
    About how high can water be theoretically lifted by a vacuum pump at sea level?
    • A. 

      Less than 10.3 m

    • B. 

      More than 10.3 m

    • C. 

      10.3 m

  • 16. 
    The flight of a blimp best illustrates
    • A. 

      The principle of Archimedes.

    • B. 

      Pascal's principle.

    • C. 

      Bernoulli's principle.

    • D. 

      Boyle's law.

  • 17. 
    Airplane flight best illustrates
    • A. 

      Archimedes' principle.

    • B. 

      Pascal's principle.

    • C. 

      Bernoulli's principle.

    • D. 

      Boyle's law.

  • 18. 
    The faster a fluid moves, the
    • A. 

      Greater its internal pressure.

    • B. 

      Less its internal pressure.

    • C. 

      Internal pressure is unaffected.

  • 19. 
    When water is turned on in a shower, the shower curtain moves towards the water. This has to do with
    • A. 

      Capillary action.

    • B. 

      Surface tension.

    • C. 

      Heat capacity.

    • D. 

      Pressure of a moving fluid.

    • E. 

      None of these

  • 20. 
    If a strong wind from the west breaks a window in the north wall of a house, most of the glass will fall
    • A. 

      Upward.

    • B. 

      Inside the house.

    • C. 

      Outside the house.

  • 21. 
    A suction cup sticks to a wall. It is
    • A. 

      Pulled to the wall by the vacuum.

    • B. 

      Pushed to the wall by the atmosphere.

    • C. 

      Both of these

    • D. 

      Both of these

  • 22. 
    A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the same column instead had the same mass of mercury in it, the height of the mercury column would be
    • A. 

      1/13.6 times the height of the atmosphere.

    • B. 

      About 3/4 meter.

    • C. 

      10.3 meters.

    • D. 

      About 5.6 kilometers.

  • 23. 
    A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the same column instead had the same mass of water in it, the height of the water column would be
    • A. 

      1/13.6 times the height of the atmosphere.

    • B. 

      About 3/4 meter.

    • C. 

      10.3 meters.

    • D. 

      About 5.6 kilometers.

  • 24. 
    Consider two mercury barometers, one with twice the cross-sectional area of the other. Neglecting capillarity, mercury in the smaller tube will rise
    • A. 

      The same height as in the larger tube.

    • B. 

      Twice as high as mercury in the larger tube.

    • C. 

      Four times as high as mercury in the larger tube.

    • D. 

      More than four times as high as in the larger tube.

    • E. 

      None of these

  • 25. 
    Gas pressure inside an inflated stretched balloon is actually
    • A. 

      Less than air pressure outside the balloon.

    • B. 

      Equal to air pressure outside the balloon.

    • C. 

      Greater than air pressure outside the balloon.

    • D. 

      Impossible to determine without knowing the type of gas.

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