Aerospace Module #3A
Terms
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- The sun heats the Earth through a method known as?
- radiation
- How much of the sun's radiation is absorbed by the Earth's surface?
- 50%
- An object moving freely in the Northern Hemisphere is deflected to the right of its intended path. This is called ______.
- coriolis force
- On March 21, (the spring, vernal, equinox), the sun rays are where?
- striking the equator
- Warm steady breezes that blow almost continuously and move toward the equator are called ____ _____.
- trade winds
- The Earth rotates on its axis in what direction in the Northern Hemisphere?
- counterclockwise
- A scale for estimating wind speed, on land or sea
- Beaufort Scale
- the weight of all of the atmosphere's gases and molecules on the Earth's surface.
- Atmospheric pressure
- A body of air in motion is called what?
- wind
- The total energy of all molecules within a substance is ______.
- heat
- Wind direction is defined as the direction from which the wind is blowing (true/false)
- TRUE
- If a flag is blowing fully extended the wind speed would be approximately _____ mph.
- 30 mph
- When temperature and wind speed are both used to explain how cold it feels, we are referring to the _____ ______.
- wind chill
- What is the boiling point temperature of Fahrenheit?
- 212 degrees
- A microburst is defined as a downdraft or ________.
- downburst
- What pressure instrument gives a permanent record of pressure readings?
- Aneroid barograph
- When a parcel of air holds all the water it can it is called_______.
- saturation
- The temperature at which air becomes saturated is called?
- Dew point
- What are the three basic cloud forms?
- Cumulus, stratus, and cirrus
- Which cloud has a uniform, sheet-like appearance with very little vertical development?
- Stratus
- Moisture in the form of a gas is called?
- water vapor
- Tiny droplets of liquid water in contact with the surface is?
- fog
- The amount of water vapor in the air compared to its water vapor capacity at a given temperature is known as?
- relative humidity
- The lowercase letter m (maritime) in air mass classification means?
- water, high moisture, and wet
- The lowercase letter c (continental) in air mass classification means?
- land (low moisture and dry)
- The four categories of the capital letters in a air mass classification are: P-polar, A-arctic, T-tropical, and E________.
- Equatorial
- What does the two-letter code cA describe for an air mass?
- continental Arctic - dry and cold
- Name the three stages of a thunderstorm.
- Building, maturing, dissipating
- Give the two-letter code for very moist and very warm
- mT
- Give the two-letter code for exceptionally cold, very dry air mass
- cA
- Give the two-letter code for a cool and moist air mass
- mP
- Give the two-letter code for a very warm and dry air mass
- cT
- A boundary between two air masses is called a _______.
- front