6th Gade Atmosphere Review

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Author:
Costi
ID:
218986
Filename:
6th Gade Atmosphere Review
Updated:
2013-05-11 11:15:48
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Atmosphere Quiz Victor
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Description:
Mereorologist, air pressure, barometer,saturation, dew point, humidity, relative humidity, anemometer, coriolis effect, wind, precipitation visibility, weather, troposhere
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  1. What is the Coriolis Effect?
    • The Coriolis Effect is the curvature of the wind caused by the rotation of the Earth.
  2. What is air pressure?
    • Air pressure is the effect of the weight of the atmospheric pressure on a given surface area.
  3. What is an anemometer?
    • An anemometer is a device that measures wind speed.
  4. What is a barometer?
    • A barometer is an instrument used to measure air pressure.
  5. What is dew point?
    • Dew point is the temperature at which the air would be saturated with moisture.
  6. What is humidity?
    • Humidity is a measure of moisture, or water vapor content of the air.
  7. A meteorologist is a scientist who studies what?
    • A meteorologist is a scientist who studies the weather.
  8. What is precipitation?


    • Precipitation is water in the form of
    • rain
    • snow
    • sleet
  9. Define relative humidity.
    • Relative humidity is the ratio between the actual amount of water vapor in the air and the maximum amount of water vapor the air can hold.
  10. What is saturation?
    Saturation is a weather condition in which the air holds as much water vapor as it can at a given temperature.
  11. What is the troposphere?
    • The troposphere is the lowest layer of air, from the surface of the earth up to about 12km. This is the layer containing most clouds and where weather conditions occur.
  12. Describe the Stratosphere...
    • The stratosphere (ozone layer) is located above the troposphere and is primarily responsible for absorbing the ultraviolet radiation of the sun.  (The temperature of the stratosphere remains well below freezing.)
  13. Describe the Metosphere...
    • The Mesosphere is (located above the Stratosphere).

    The air in the Mesosphere is especially thin and molecules are a great distance apart.  Temperature in the Mesosphere reaches a low of -184 degrees Fahrenheit.
  14. Describe the Exosphere....
    • The Exosphere (the uppermost region of the Earth's atmosphere) is where atoms and molecules escape into space.
  15. What is visibility?
    • Visibility is a measure of the transparency of the atmosphere; fog, haze.

    Precipitation and pollution reduce visibility.
  16. Define weather.
    • Weather is the short term condition of the atmosphere and the changes that occur within hours or days.
  17. What is wind?
    • Wind is the natural movement of air along, or parallel to, the Earth's surface.
  18. What causes air pressure to rise and fall?
    • As air gets warmer, it expands and becomes less dense, causing atmospheric pressure to fall. 
    • Hot air is less dense than cool air which is why hot air rises and cool air falls.
  19. When is air temperature usually the lowest?
    Air temperature is usually the lowest after sunrise.
  20. When is air temperature usually th highest?
    Air temperature is usually the highest after midday.
  21. Hw do clouds affect temperature during the day and night?
    During the day clouds reflect about 20 percent of the sun's heat back into space. They also absorb another 20 percent of solar radiation.

    At night, a cloudy sky usually indicates slightly warmer temperatures because high-level clouds can create a blanketing effect.  These clouds absorb some of the heat released by the ground as it cools in the evening and reflect it back toward the Earth's surface.
  22. When air more or less dense and what causes it?
    The temperature of air, its pressure, and how much water vapor is in the air affects the density of air.
  23. What are winds the result of?
    • Winds are the result of....
    • the difference in atmospheric pressure and the earth's rotation.
  24. Where do winds always blow from?
    Winds always blow from areas of high pressure to areas of low pressure.
  25. When and how do clouds form?
    • Clouds form when water evaporates from rivers, lakes, and oceans and saturate the air above.
    • The higher the air temp, the greater its capacity to hold water vapor. When the dew point is reached, condensation takes place and water droplets form.
  26. What are the most common forms of precipitation?
    • The most common forms of precipitation are...
    • Rain
    • snow
    • sleet
    • fog
    • hail

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