Chapter 17 - Weather Flashcards
A quantity that can change.
Variable
The force that a column of air applies in the air or a surface below it.
Air pressure
A machine that measures air pressure.
Barometer
Wind moves from where to where?
High to low pressure.
If a wind blows from west to east, is it a westerly or an easterly?
Westerly.
What machine is used to measure wind speed?
Anemometer
The amount of water vapor in the air.
Humidity
A machine used to measure humidity.
Hygrometer
The amount of water vapor in the air compared to the amount of water vapor the air could hold at that temperature, expressed as a percentage.
Relative humidity
The temperature at which the air is saturated with water vapor and condensation can occur.
Dew point
To be so full of something that you cannot absorb any more.
Saturated
Flat, white, and layered clouds
Stratus
Fluffy, heaped, or piled up clouds
Cumulus
Wispy, high clouds
Cirrus
A cloud near or on the surface.
Fog
Water, in liquid or solid form, that falls from the atmosphere.
Precipitation.
Precipitation that reaches the earth a droplets of water.
Rain
The atmospheric conditions and short term changes for a certain place at a certain time.
Weather
變量
Variable
氣壓計
Barometer
氣壓
Air pressure
濕度
Humidity
濕度器
Hygrometer
相對濕度
Relative humidity