Download Meteorology Chapter 9 Worksheet 1 Name: Circle the letter that

Meteorology
Chapter 9 Worksheet 1 Name: ________________________________
Circle the letter that corresponds to the correct answer 1) Another common term for the wave cyclone is: a) tropical cyclone. b) polar‐front cyclone. c) intertropical convergence zone. d) midlatitude cyclone. 2) If a warm front is approaching, you can expect: a) falling temperatures. b) rising temperatures. c) clearing skies. d) calm winds. 3)
The process best illustrated in the diagram (to the left)of a front above is: a) convection. b) convergence. c) overrunning. d) occlusion. 4) On a weather map, a line with blue triangles on one side and red semicircles on the other represents: a) a cold front. b) a warm front. c) a stationary front. 5) On a weather map, ________ fronts are shown with blue triangular points along a blue line. a) cold b) stationary c) occluded d) warm 6) A warm front is said to exist when: a) advancing warm air overrides retreating cold air. b) moving cold air overrides warmer air. c) warm air pushes underneath cold air. d) warm and cold air meet. e) invading cold air pushes underneath warmer air. 7) The lifting of air and the resulting formation of clouds and rain is more gentle (gradual) for a: a) cold front. b) occluded front. c) warm front. d) divergence zone. 8) Which of these is common to both cold and warm fronts? a) divergence of surface winds b) light to calm winds c) lifting of warm air over cold d) decreasing precipitation rates e) steady barometer readings 9) If you were 200 kilometers ahead of the surface position of a warm front, you would find the frontal surface at a height of ________ km overhead. a) 1 b) 1.5 c) 2.5 d) 2 e) 0.5 10) The general term applied to warm air moving up over a colder air mass is: a) overrunning. b) warm front. c) cold front. d) orographic lifting. 11)
The type of front shown in the diagram to the left is: a) a cold front. b) a warm front. c) a stationary front. d) an occluded front. 12) Refer to the diagram of a front shown above. If the warm air at the back is stable, what kind of cloud is most likely to form and produce precipitation in association with the front? a) nimbostratus b) cumulonimbus c) altocumulus d) cirrus 13) The glaze that sometimes forms in association with warm fronts occurs when: a) snow melts against a warm surface and later freezes. b) rain freezes as it falls through the air. c) rain strikes a very cold surface and freezes directly to it. d) rain falls during the day and freezes at night. 14) As a warm front approaches, which progression of clouds are you most likely to see? A) cirrus, cumulonimbus B) altostratus, cirrostratus, stratus, cumulonimbus C) cirrocumulus, cirrus, nimbostratus, stratus D) cirrus, cirrostratus, altostratus, nimbostratus 15)
The type of front shown on the diagram above is: a) a cold front. b) a warm front. c) an occluded front. d) a stationary front. 16) Which of the following air masses is most likely to be the cold air in the diagram above? a) mT b) mP c) cP d) cT 17) The type of weather most frequently associated with the front shown on the diagram above is: a) clear skies. b) steady, gentle rainfall. c) blizzards. d) thunderstorms and other severe weather. 18) In the United States, the air mass most commonly found at the back of a cold front is: a) mT. b) cT. c) cP. d) mP. 19) The cloud type most frequently associated with a cold front is: a) cirrus. b) cumulonimbus. c) altocumulus. d) status. e) cirrocumulus. 20) The more violent nature of weather produced by a cold front can be attributed to which two factors? a) the gradual slope and fast forward motion of the front b) the steep slope and fast forward motion of the front c) the gradual slope and slow forward motion of the front d) the steep slope and slow forward motion of the front 21) Compared to warm fronts, cold fronts have: a) the same gradient and a faster advance rate. b) the same gradient and the same advance rate. c) a shallower gradient and a slower advance rate. d) a steeper gradient and a faster advance rate. e) a shallower gradient and the same advance rate. 22) The arrival of a cold front brings: a) mild weather. b) gentle rains. c) higher temperatures. d) cumulonimbus clouds. e) stationary winds. Circle “T” if the statement is true or “F” if the statement is false T F 23. The region between the warm front and cold front of a wave cyclone is the warm sector.
T F 24. Frontal systems cause clouds by adding moisture to the air.
T F 25. The first sign of an approaching warm front is the appearance of altostratus clouds. T F 26. Freezing rain and/or sleet occur most often with a cold front.
T F 27. When a warm front passes, temperature rises and the wind usually shifts. T F 28. Cold fronts generally travel faster than warm fronts
T F 29. Thunderstorms are most common along a cold front.
T F 30. Cold fronts are steeper than warm fronts.
T F 31. Warm‐type occluded fronts are the most common type of occluded front to form east of the Rockies. 32. Humid air is less dense than dry air.
33. Middle‐latitude cyclones typically develop along segments of the polar front. T F T F Answer the following questions 34. What cloud type is often seen as the first sign of an approaching warm front? 35. Severe weather, including tornadoes, is most often associated with a ________ front.