practice exam

Violent Weather:

Violent Weather “Practice” Exam

Slide 2:

The map below shows a weather variable recorded at noon on a certain day. Isolines show values from 20 to 70. 1. Which atmospheric variable is most likely represented by the isolines on this map? Air Temperature

Slide 3:

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. 2. Circle the weather-map symbols which best represents air-mass X and the frontal boundary shown on the map? #1

Slide 4:

Circle which pie graph correctly shows the percentage of elements by volume in Earth’s troposphere? #1

Slide 5:

Base your answers to questions 4 through 5 on the weather map below. Points A, B, C, and D are locations on Earth’s surface. 4. The isolines on the map represent values of air ___________________. 5. At which point, A or B would the wind speed be greatest?_____________. Explain why. 4. Air Pressure 5. Point A because the isobars are closer together

Slide 6:

Which type of front was producing the weather in Nebraska (NE) when the image below was taken? Cold front

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7. cP The graph below shows changes in the atmosphere occurring above typical air-mass source regions A, B, C, and D . Changes in air temperature and altitude are shown as the graphed lines. Changes in water-vapor content, in grams of vapor per kilogram of air, are shown as numbers on each graphed line. The type of air mass characterized by Letter A on the graph would be The type of air mass characterized by Letter B on the graph would be The type of air mass characterized by Letter C on the graph would be The type of air mass characterized by Letter A on the graph would be 8. mP 9. mT 10. cT

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11. D The cross section below shows a sea breeze blowing from the ocean toward the land. The air pressure at the land surface is 1013 millibars. Circle the air pressure at the ocean surface a few miles from the shore is most likely a. 994 mb b. 1013 mb c. 1005 mb d. 1017 mb

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12. B and D The map below shows high-pressure and low pressure weather systems in the United States. 12. Which two lettered positions on the map are most likely receiving precipitation?

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13. transpiration Base your answers to questions 13 through 15 on the diagram of the water cycle below. Letter A represents a process in the water cycle. Points X and Y represent locations on Earth’s surface. B D C 13. The process represented by Letter A is 14 What process is represented by Letter C on the diagram 15 What process is represented by Letter D on the diagram 14. condensation 15. evaporation

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16. cP Base your answers to questions 40 through 43 on the weather map below, which shows a low-pressure system over the central United States. Isobars are labeled in millibars. Points A , B , C , and D represent locations on Earth’s surface. 16. Point A on the map is currently experiencing temperatures that are characteristic of which type of air mass? 17. What is the approximate air pressure at Point B on the map? 17. 1003 mb

Slide 12:

18. #1 The map to the left shows the boundary between two air masses. The arrows show the direction in which the boundary is moving. 18. Circle the number of weather map that uses the correct weather front symbol to illustrate this information?

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19. A and B Base your answers to questions and on the cross section below that represents part of Earth’s water cycle. Letters A , B , C , and D represent processes that occur during the cycle. The level of the water table (level of water below the ground) and the extent of the zone of saturation are shown. 19. Which two letters represent processes in the water cycle that usually cause a lowering of the water table? 20. Which two letters represent processes in the water cycle that would work together to cause a rise in the level of the water table? 20. D and C

Slide 14:

Base your answers to questions 70 through 72 on the diagram below, which shows the temperature change when a parcel of air warms, rises, and expands to form a cloud. Location A is at the base of the cloud. Explain why warmer air rises. Assume the cooling rate of the rising parcel of air is constant. Determine the temperature of the air parcel at the 3350-foot altitude. 23. What process is occurring at Letter A? Answer

Slide 15:

21. Warm air is less dense 22. 43.5 degrees 23. Condensation

Slide 16:

# 2 24. Adjacent land and ocean surfaces have the same temperature at sunrise on a clear, calm, summer day. Then the land and water are heated by the Sun for several hours. Circle the number of the cross section that shows the most likely direction of surface winds that will develop at this ocean shore?

Slide 17:

# 3 Base your answers to question 25 on the weather map to the left. The map shows a low-pressure system and some atmospheric conditions at weather stations A, B, and C . 25. Circle the number of the cross section that best represents the air masses, air movement, clouds, and precipitation occurring behind and ahead of the warm front located between stations A and B ?