SEVERE WEATHER AND FRONTS TAKE HOME QUIZ
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1 1. Most of the hurricanes that affect the east coast of the United States originally form over the A) warm waters of the Atlantic Ocean in summer B) warm land of the southeastern United States in summer C) cool waters of the Atlantic Ocean in spring D) cool land of the southeastern United States in spring TAKE HOME QUIZ 2. Base your answer to the following question on the weather map below, which shows a hurricane that was located over southern Florida. The isobars show air pressure in inches of mercury. Letters A through D represent four widely separated locations. What was the direction of movement of surface winds associated with this hurricane? A) counterclockwise and away from the center B) counterclockwise and toward the center C) clockwise and away from the center D) clockwise and toward the center
2 3. Base your answer to the following question on the satellite image below, which shows a Northern Hemisphere hurricane. Which air mass is normally associated with the formation of hurricanes? A) continental tropical B) maritime tropical C) continental polar D) maritime polar 4. The map below shows part of North America. The arrows shown on the map most likely represent the direction of movement of A) Earth's rotation B) the prevailing northeast winds C) ocean conduction currents D) Atlantic Ocean hurricanes
3 5. The weather satellite image below shows two large swirl-shaped cloud formations, labeled A and B, over the Pacific Ocean. These large swirl-shaped cloud formations most likely represent A) polar air masses B) warm fronts C) tornadoes D) hurricanes 6. The cross section below shows a weather front. The large arrow shows the direction of the movement of the cool air mass. Which type of weather front is shown? A) warm front B) cold front C) occluded front D) stationery front 7. Which type of air mass most likely has high humidity and high temperature? A) cp B) ct C) mt D) mp
4 Base your answers to questions 8 and 9 on the weather map below and on your knowledge of Earth science. The map of a portion of eastern North America shows a high-pressure center (H) and a low-pressure center (L), frontal boundaries, and present weather conditions. 8. The general surface wind circulation associated with the high-pressure center (H) is most likely A) clockwise and outward B) clockwise and inward C) counterclockwise and outward D) counterclockwise and inward 9. What was the most likely source region for the air mass over Pennsylvania? A) New York State B) Pacific Ocean C) Gulf of Mexico D) Canada
5 10. A cross section of a weather front is shown below. Which symbol would be used to represent this front on a weather map? A) B) C) D) 11. The cross section of the atmosphere below represents the air motion near two frontal boundaries along reference line XY on Earth's surface. Which weather map correctly identifies these fronts and indicates the direction that these fronts are moving? A) B) C) D)
6 12. Base your answer to the following question on the weather map below, which shows a weather system that is affecting part of the United States. Which diagram shows the surface air movements most likely associated with the fronts? A) B) C) D) 13. The weather map below shows a portion of a low-pressure system. Which front will most likely pass over location A during the next two hours'? A) warm B) stationary C) occluded D) cold
7 14. The satellite photograph below shows a Northern Hemisphere cloud pattern. The center of this cloud pattern is most likely the center of a A) cold, dry air mass B) warm, dry air mass C) low-pressure system D) high-pressure system 15. What is the dewpoint when the dry-bulb temperature is 8 C and the wet-bulb temperature is 2 C? A) 28 C B) 6 C C) 3 C D) 9 C 16. The map below represents a section of a weather map for locations in the eastern United States. The map shows a low-pressure system, fronts, and weather stations A, B, C, and D. At which weather station are weather conditions probably most unstable? A) A B) B C) C D) D
8 17. Base your answer to the following question on the map below, which shows the position of the jet stream relative to two air masses and a low-pressure center (L) over the United States. What is the difference in the air temperature and humidity between the cp and mt air masses? A) The cp air mass is warmer and less humid. B) The cp air mass is colder and more humid. C) The mt air mass is warmer and more humid. D) The mt air mass is colder and less humid. 18. Which type of air mass would most likely have low humidity and high air temperature? A) ct B) cp C) mt D) mp
9 Base your answers to questions 19 and 20 on the weather map below, which shows a high-pressure center (H) and a low-pressure center (L), with two fronts extending from the low-pressure center. Points X and Y are locations on the map connected by a reference line. 19. Which type of front is located between Buffalo and Detroit? A) stationary B) warm C) occluded D) cold
10 20. Which map best shows the most probable areas of precipitation associated with these weather systems?
11 A) B) C) D)
12 21. Cities A, B, C, and D on the weather map below are being affected by a low-pressure system (cyclone). Which city would have the most unstable atmospheric conditions and the greatest chance of precipitation? A) A B) B C) C D) D 22. The photograph below shows a spiral pattern of clouds in the Earth's atmosphere. The spiral is hundreds of miles across. Which type of weather does this photograph show? A) a cyclone B) a cold front C) a stationary front D) a high-pressure center
13 23. Base your answer to the following question on the weather map below. The map shows a low-pressure system and some atmospheric conditions at weather stations A, B, and C. Which type of weather is usually associated with a cp air mass, as shown near weather station C? A) moist and cool B) moist and warm C) dry and cool D) dry and warm
14 24. The map below shows surface air temperatures, in degrees Fahrenheit, reported by weather stations in the north-central United States. Letter X represents an air mass moving in the direction shown by the arrow. A line marks a frontal boundary advancing in a southeasterly direction. Which weather-map symbols best represent air-mass X and the frontal boundary shown on the map? A) B) C) D)
15 25. A map view of surface air movement in a low-pressure system is shown below. The air near the center of this low-pressure system usually will A) evaporate into a liquid B) reverse direction C) rise and form clouds D) squeeze together to form a high-pressure system 26. A map of the United States is shown below. Weather conditions in which location would be of most interest to a person predicting the next day's weather for New York State? A) A B) B C) C D) D 27. Daily weather forecasts are based primarily on A) ocean currents B) seismic data C) phases of the Moon D) air-mass movements
16 28. The map below shows the amount of snowfall, in inches, produced by a lake-effect snowstorm in central New York State. The wind that produced this snowfall pattern most likely came from the A) northeast B) northwest C) southeast D) southwest
17 29. Base your answer to the following question on the following map and passage. The map shows the extent of summer ice-melt zones on Greenland in 1992 and The summer melt zone is an area where summer heat turns snow and ice around the edges of the ice sheet into slush and ponds of meltwater. Three coastal locations are shown on the map. Arctic Meltdown Scientists are concerned because average arctic temperatures are rising. The Greenland Ice Sheet, the dominant area of continental ice in the arctic region, broke all previous records for melting in In 2004, the total amount of ice resting on top of the continental crust in the arctic region was estimated to be about 3,100,000 cubic kilometers. If all this ice were to melt, the ocean levels would rise approximately 8.5 meters. A reduction in ice-covered areas exposes more land surfaces. This increases absorption of insolation and accelerates arctic warming. Scientists continue to collect data to define the role of greenhouse gases in the warming of the arctic region. A decrease in areas covered in snow and ice leads to an increase in the absorption of insolation because exposed land surfaces are A) rougher and darker B) rougher and lighter C) smoother and darker D) smoother and lighter
18 30. A weather instrument is shown below. Which weather variable is measured by this instrument? A) wind speed B) precipitation C) cloud cover D) air pressure
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