Chapter 19 Study Guide
Weather
1. Differences in air pressure produce _____________.
2. The type of cloud that is sometimes called a thundercloud is a _______________ cloud.
3. A tropical storm with sustained winds of at least 120 km/hour is a(an) ________________.
4. On a weather map, the symbol · represents __________.
5. Continental polar air masses form over ___________, dry land surfaces.
6. The type of air mass that forms near the North Pole is an _____________ air mass.
7. The boundary where two different air masses come together is a ________________.
8. An _______________ front forms when a cold front overtakes a warm front. (remember the warm front has a cold air mass ahead of it.)
9. Air pressure is measured with an instrument called a(n) ____________________.
10. If the flag on a weather map has two barbs, the windspeed is _________________.
11. Atmospheric air pressure is reported in _________________.
12. Lines a weather map that connect points having the same temperature are __________________.
13. Lines on a map that connect points having the same air pressure are _________________.
14. What type of air pattern produces hurricanes and major winter storms? __________________(cyclonic or anticyclonic)
15. True or false: Millibars are a measure of the actual weight of air pressing on 1cm2 area.
16. True or false: At sea level and 0° , normal barometric pressure is 760mm of mercury.
17. True or false: A line on a weather map that has triangles and circles facing the same way is used to show an occluded front.
18. True or false: High cirrus clouds are an indication of a warm front.
19. True or false: The boundary between two nonmoving air masses is called a stationary front.
20. True or false: A maritime tropical air mass forms near the equator.
21. True or false: A maritime polar air mass forms as air over cold polar oceans cools and takes on moisture.
22. True or false: Isotherms are used to indicate air pressure.
23. True of false: On a station model, the symbol * is used to show snow.
24. True or false: On a weather map, an area of high pressure is shown by an H.
25. Which of the following
units is used to record temperature on a station model? degrees
Celsius, degrees Fahrenheit, Kelvin, millibars
Chapter 19 Study Guide Answers
1. Differences in air pressure produce ___wind___.
2. The type of cloud that is sometimes called a thundercloud is a _cumulonimbus__ cloud.
3. A tropical storm with sustained winds of at least 120 km/hour is a __hurricane__.
4. On a weather map, the symbol · represents __rain__.
5. Continental polar air masses form over ____cold__, dry land surfaces.
6. The type of air mass that forms near the North Pole is an ___arctic_____ air mass.
7. The boundary where two different air masses come together is a _____front______.
8. An ___occluded_____ front forms when a cold front overtakes a warm front. (remember the warm front has a cold air mass ahead of it.)
9. Air pressure is measured with an instrument called a(n) ____barometer_____.
10. If the flag on a weather map has two barbs, the windspeed is _____36 km/h______.
11. Atmospheric air pressure is reported in __millibars___.(not isobars - those are lines connecting points having equal pressure on a map)
12. Lines a weather map that connect points having the same temperature are ____isotherms____.
13. Lines on a map that connect points having the same air pressure are ___isobars____.
14. What type of air pattern produces hurricanes and major winter storms? ___cyclonic____(cyclonic or anticyclonic)
15. True or false: Millibars are a measure of the actual weight of air pressing on 1cm2 area.
16. True or false: At sea level and 0° , normal barometric pressure is 760mm of mercury.
17. True or false: A line on a weather map that has triangles and circles facing the same way is used to show an occluded front.
18. True or false: High cirrus clouds are an indication of a warm front.
19. True or false: The boundary between two nonmoving air masses is called a stationary front.
20. True or false: A maritime tropical air mass forms near the equator. (equatorial)
21. True or false: A maritime polar air mass forms as air over cold polar oceans cools and takes on moisture.
22. True or false: Isotherms are used to indicate air pressure. (temperature)
23. True of false: On a station model, the symbol * is used to show snow.
24. True or false: On a weather map, an area of high pressure is shown by an H.
25. Which of the following units is used to record temperature on a station model? degrees Celsius, degrees Fahrenheit, Kelvin, millibars
