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3/25/16 Quiz
| Question | Answer |
|---|---|
| Latent Heat | The heat energy that is absorbed or released by a substance during a phase change. |
| Dew Point | At constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation. |
| Absolute Humidity | The mass of water vapor per unit volume of air that contains the water vapor, usually expressed as grams of water vapor per cubic meter of air. |
| Relative Humidity | The ratio of the amount of water vapor in the air to the amount of water vapor needed to reach saturation at a given temperature. |
| Condensation nucleus | A solid particle in the atmosphere that provides the surface on which water vapor condenses. |
| Advective cooling | The process by which the temperature of an air mass decreases as the air mass moves over a cold surface. |
| Adiabatic cooling | The process by which the temperature of an air mass decreases as the air mass rises and expands. |
| Stratus Cloud | A gray cloud that has a flat, uniform base that commonly forms at low altitudes. |
| Cumulus Cloud | A low-level, billowy cloud that commonly has a top that resembles cotton balls and a dark bottom. |
| Cirrus Cloud | A feathery cloud that is composed of ice crystals, and that has the highest altitude of any cloud in the sky. |