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Test your basic knowledge |
Weather Fundamentals
Start Test
Study First
Subject
:
science
Instructions:
Answer 36 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. High pressure system. when cool air in the upper atmosphere has higher density than its surrounding - creating high pressure system. It moves twd the ground - so air moves way from the high pressure system near earth's surface
lower pressure
anticyclone
cyclone
pressure
2. Mount of water vapor in the air
dew point
absolute humidity
winds
cyclone
3. Ratio of observed absolute humidity divided by sbsolute humidity at dew point
relative humidity
dew point
lower pressure
troposphere
4. When it is water saturated (the maximum amount of water that the air mass can hold at a given temperature
layers of atmosphere
temp in troposphere
atmosphere
dew point
5. Contains ozone layer - temperature increases upward due to oxygen - which absorbs UV radiation
stratosphere
winds
weather
relative humidity
6. Occurs when rising air expands without change in heat content. Whenever an air mass expands - the available heat is distributed over a larger volume so the air becomes cooler.
absolute humidity
stratosphere
relative humidity
adiabatic cooling
7. Lowest layer. Where all weather phenomena occur. Extends to altitude of 10 to 15 km - contains about 90@ of mass of atmosphere - including about all water vapor.
cyclone
anticyclone
stratosphere
troposphere
8. Occurs when rising air expands without change in heat content. Whenever an air mass expands - the available heat is distributed over a larger volume so the air becomes cooler.
adiabatic cooling
pressure
anticyclone
temp in troposphere
9. Daily fluctuations in temperature - wind speed - and precipitation
weather
dew point
layers of atmosphere
atmosphere
10. When it is water saturated (the maximum amount of water that the air mass can hold at a given temperature
anticyclone
atmosphere
humidity
dew point
11. Atmosphere has layered structure. defined by temp - pressure - and chemical composition
humidity
absolute humidity
layers of atmosphere
dew point
12. Average atmospheric pressure at sea level equals 14.7 lbs. due to weight of overlying air column
pressure
weather
weather
clouds
13. Average atmospheric pressure at sea level equals 14.7 lbs. due to weight of overlying air column
relative humidity
weather
dew point
pressure
14. If air cools to the temp at which its relative humidity is 100% - the water saturated air is still invisible. If it cools further - it will have more ater vapor than it can hold and some of the water will condense into tiny water droplets - to form c
clouds
weather
weather
temp in troposphere
15. Lowest layer. Where all weather phenomena occur. Extends to altitude of 10 to 15 km - contains about 90@ of mass of atmosphere - including about all water vapor.
atmosphere
temp in troposphere
relative humidity
troposphere
16. Amount of water vapor an aim mass holds. air can dissolve water
pressure
winds
anticyclone
humidity
17. Differences in air pressures between high and low pressure systems. The larger the differences in air pressures - the stronger they are
winds
weather
weather
stratosphere
18. Atmosphere has layered structure. defined by temp - pressure - and chemical composition
absolute humidity
troposphere
adiabatic cooling
layers of atmosphere
19. Daily fluctuations in temperature - wind speed - and precipitation
clouds
dew point
weather
atmosphere
20. Depends on temp; cold air can dissolve little water whereas warm air can dissolve a lot.
clouds
winds
humidity
winds
21. Mount of water vapor in the air
dew point
dew point
clouds
absolute humidity
22. Depends on temp; cold air can dissolve little water whereas warm air can dissolve a lot.
relative humidity
weather
humidity
temp in troposphere
23. Decreases upward to altitude of 10-15 km due to increase distance above main mass of earth - which absorbs sunlight and reradiates it as heat
temp in troposphere
humidity
humidity
pressure
24. Differences in air pressures between high and low pressure systems. The larger the differences in air pressures - the stronger they are
winds
atmosphere
adiabatic cooling
clouds
25. If air cools to the temp at which its relative humidity is 100% - the water saturated air is still invisible. If it cools further - it will have more ater vapor than it can hold and some of the water will condense into tiny water droplets - to form c
clouds
humidity
cyclone
pressure
26. Rising air exerts less downward pressure than falling air. air near the ground surface is pulled in toward the low pressure center to replace the rising air
lower pressure
cyclone
relative humidity
adiabatic cooling
27. Envelope of gases surrounding earth - extending from the surface to about 10 -000 km above
weather
adiabatic cooling
stratosphere
atmosphere
28. Low pressure system. When an air mass near the ground is heated - the air molecules vibrate faster - cause the air mass to expand and its density to decrease. With a lower density than the surrounding air - the mass rises to create a low pressure reg
lower pressure
lower pressure
anticyclone
cyclone
29. Ratio of observed absolute humidity divided by sbsolute humidity at dew point
temp in troposphere
weather
dew point
relative humidity
30. Rising air exerts less downward pressure than falling air. air near the ground surface is pulled in toward the low pressure center to replace the rising air
pressure
lower pressure
temp in troposphere
pressure
31. Contains ozone layer - temperature increases upward due to oxygen - which absorbs UV radiation
layers of atmosphere
humidity
pressure
stratosphere
32. Envelope of gases surrounding earth - extending from the surface to about 10 -000 km above
humidity
winds
anticyclone
atmosphere
33. Low pressure system. When an air mass near the ground is heated - the air molecules vibrate faster - cause the air mass to expand and its density to decrease. With a lower density than the surrounding air - the mass rises to create a low pressure reg
cyclone
clouds
clouds
pressure
34. High pressure system. when cool air in the upper atmosphere has higher density than its surrounding - creating high pressure system. It moves twd the ground - so air moves way from the high pressure system near earth's surface
winds
stratosphere
anticyclone
lower pressure
35. Decreases upward to altitude of 10-15 km due to increase distance above main mass of earth - which absorbs sunlight and reradiates it as heat
temp in troposphere
winds
stratosphere
pressure
36. Amount of water vapor an aim mass holds. air can dissolve water
humidity
anticyclone
weather
anticyclone