front 1 What is the Altimeter? | back 1 A pressure sensor used to determine altitude. |
front 2 What is atmospheric pressure? | back 2 The force per unit area exerted by the weight of the atmosphere. |
front 3 What is a barometer? | back 3 A device used to measure the atmospheric pressure (without the use of fluids.) |
front 4 What are the five different types of altitude? | back 4 1. Indicated Altitude: What you read on the altimeter. 2. Pressure Altitude: displayed when the altimeter is set to 29.92 in/mg, it is the vertical distance above the standard datum plane 3. Density Altitude: Pressure corrected for nonstandard temperature. 4. True Altitude: The actual height above mean sea level (msl) 5. Absolute Altitude: The actual height above the earth's surface. |
front 5 What are the Atmospheric Pressure Units? | back 5 Millibars (mb or mbars) or hectopascals (hPa) |
front 6 What is Station Pressure? | back 6 Pressure measured at an airport. |
front 7 What is Pressure Variation? | back 7 The changes in atmospheric pressure with altitude and temperature of the air. |
front 8 What effect does temperature have on pressure? | back 8 Air expands as it gets warmer, and contracts as it cools. |
front 9 What is Density and the formula to find density? | back 9 The ratio of the mass of a substance to the volume occupied by it. Density = Mass/Volume. (D=M/V) |
front 10 What is Desposition? | back 10 Where gas changes to a solid. |
front 11 What is Dewpoint? | back 11 The measure of atmospheric moisture, the temperature at which the air becomes saturated with water vapor. |
front 12 What is Relative Humidity? | back 12 The amount of water vapor present in the air compound to the max. the air can hold at that temperature. |
front 13 What is Lapse Rate? | back 13 The temperature change with altitude. |
front 14 What is the difference between continential and maritime? | back 14 Continential=dry Maritime=moist |
front 15 What is convection wind? | back 15 Vertical wind. |
front 16 What is advection wind? | back 16 Horizontal wind |