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GenSci 706 q1
Question | Answer |
---|---|
The weight of the air pushing down on the Earth is called what? | air pressure |
An anti-cyclone can occur in a _____ pressure area. | high |
The tendency of a moving object to curve due to the Earth's rotation is called what? | The Coriolis effect |
A cyclone can occur in a _____ pressure area | low |
The temperature at which the air becomes saturated is called what? | The dew point |
The amount of moisture in the air is called what? | humidity |
The study of the atmosphere and the weather is called what? | meteorology |
The moisture that falls from the clouds is called what? | precipitation |
What element affects weather the most? | Temperature |
What provides the energy needed for weather changes to occur? | The sun |
Warm air does what? | It rises. |
The general flow of air from the poles to the equator occurs where? | At the surface of the earth |
If you are in _________, airborne objects tend to curve to the right. | The Northern hemisphere |
What instrument is used to measure air pressure? | A barometer |
What direction does air move around an anticyclone? | clockwise |
What does air do as it cools down? | It sinks. |
What instrument is used to determine the direction of air movement? | A wind vane |
The general flow of air from the equator to the poles occurs where? | In the upper troposphere. |
An instrument for measuring the speed of the wind is the ______ | anemometer |
The primary cause of weather is the _______ in ___________ around the earth. | changes in temperature |
The troposphere receives most of its heat energy directly from what? | The ground |
Two standard scales for measuring temperature are: | Celsius Fahrenheit (Be sure you know how to spell them.) |
Water freezes at __ degrees Celsius and at ___ degrees Farenheit. | 0 C 32 F (Pay attention on the test to whether they're asking you about C or F.) |
Water boils at ___ degrees Farenheit. | 212 |
Local winds can be caused by ________ heating of the Earth's surface. | uneven |
Which air is more dense, cold air or hot air? | Cold |
The overall global circulation of air is caused by ______ equatorial air, ______sinking polar air, and deflection of air to the ______ in the Northern Hemisphere. | The overall global circulation of air is caused by RISING equatorial air, SINKING polar air, and deflection of air to the RIGHT in the Northern Hemisphere. |
A narrow band of high-velocity air in the upper troposphere is called the _________ . | jet stream |
What is the standard sea level pressure? | 14.7 lb/sq inch |
Areas of sinking cold air generally have _________ pressure and ______ weather. | high pressure sunny (or good or clear or fair) weather. |
The measure of water vapor saturation of air is called what? | Relative humidity |
When air is cooled, the relative humidity will do what? Why? | It will increase, because cooler air has less capacity to hold moisture, so the cooling air will be like a shrinking cup holding the water. It will become more full, which is higher "relative" humidity. |
Rain falling through sub-freezing calm air will turn into what? | Sleet |