Science 1206 SAMPLE Test ( Weather Dynamics) Name:. Part A: Multiple Choice (60%) Shade the letter of the best answer on the Scantron sheet provided. 1. Which term refers to the current atmospheric conditions? A. climate C. pressure system B. weather D. frontal system 2. What instrument is used to measure atmospheric humidity? A. Altimeter C. Barometer B. Psychrometer D. Anemometer 3. What is the main reason for Earth s changing weather? A Ocean currents flowing to the South. C. Uneven heating of Earth s surface. B. Air currents moving from East to West. D. Rising air in High pressure systems. 4. Which term refers to the amount of the sun s energy that is reflected back into space by Earth? A. absorption C. conduction B. radiation D. albedo 5. Approximately how much of the sun s energy is absorbed by Earth s clouds and atmosphere? A. 50% C. 10% B. 70% D. 20% 6. What is Earth s albedo value? A. 0.31 C. 0.15 B. 0.69 D. 0.20 7. Which of the following is NOT part of the biosphere? A. Thermosphere C. Hydrosphere B. Lithosphere D. Atmosphere 8. Through what method of energy transfer does Earth receive its energy from the sun? A. advection C. convection B. radiation D. conduction 9. You are holding a metal rod in a flame. Gradually, you feel the heat on your hand. Which method of energy transfer is responsible for this? A. advection C. convection B. radiation D. conduction 10. How is Bay Roberts climate affected by its proximity to the Atlantic Ocean? A. Bay Roberts has cooler summers and milder winters. B. Bay Roberts has warmer summers and milder winters. C. Bay Roberts has cooler summers and colder winters. D. Bay Roberts has warmer summers and colder winters. 11. What is the name given to a cloud that forms on or near the ground? A. fog C. convective cloud B. frontal cloud D. orographic cloud 12. Which of the following fronts is associated with a weakening low pressure system (cyclone) where the warm front is caught by the cold front? A. stationary front C. occluded front B. cold front D. warm front 13. Which is true about the air in a high pressure system in the northern hemisphere? A. It rotates clockwise as it rises to higher altitudes B. It rotates counter-clockwise as it descends from high altitudes C. It rotates clockwise as it descends from high altitudes D. It rotates counter-clockwise as it rises to higher altitudes
14. Which describes a material with a high specific heat capacity? A. Heats up quickly and cools down quickly. C. Heats up quickly and cools down slowly. B. Heats up slowly and cools down quickly. D. Heats up slowly and cools down slowly. 15. Which property of the ocean makes it a good heat source in wintertime? A. It has a high specific heat capacity. C. It has a high albedo. B. It has a low specific heat capacity. D. It has a low albedo. 16. Which of the following can cause hurricanes to develop? A. warm fronts C. high pressure systems B. cold fronts D. low pressure systems 17. What is the name of a large body of air with the same temperature, humidity, and pressure? A. Stationary front C. Jet stream B. Occluded front D. Air mass 18. Why do Earth s prevailing winds get deflected? A. gravity C. convection currents B. Coriolis effect D. ocean currents 19. In the diagram, the arrow shows the direction of the wind. What is the name of this wind? A. Easterly C. Southerly B. South-Easterly D. North-Westerly 20. Which of the following is caused by ocean currents? A. Rainforests are formed on the northern side of continents. B. Rainforests are formed on the southern side of continents. C. Deserts are formed on the eastern side of continents. D. Deserts are formed on the western side of continents. 21. Which ocean currents affect Newfoundland s weather? A. warm Labrador current from the north and cold Gulf stream from the south B. warm Labrador current from the south and cold Gulf stream from the north C. cold Labrador current from the north and warm Gulf stream from the south D. cold Labrador current from the south and warm Gulf stream from the north 22. Which of the following symbols represents a cold front on a weather map? A. C. B. D. 23. Which of the following symbols represents an occluded front on a weather map? A. C. B. D. 24. Which of the following is NOT one of the criteria for a winter storm to be classified as a blizzard? A. Wind speeds must be at least 40 km/h. B. Visibility must be less than 400 m. C. Snow and/or blowing now must last at least 4 hours. D. Accumulations of snow must be at least 40 cm. 25. What is the name of the narrow boundary between the cold northerly air and the warm southerly air? A. Jet stream C. Cold front B. Coriolis effect D. Warm front
Part B: Long Answers (40%) Answer ALL of the following questions in the space provided. 26. On the diagram of Earth below: A) using arrows, draw the prevailing winds. (3%) B) name each of the prevailing winds. (6%) C) draw the convection cells. (2%) 27. On the World map below: (7%) A) sketch the major ocean currents B) sketch and label the currents that influence the weather and climate of the Avalon Peninsula.
28. Use the weather maps provided to answer the following questions. Weather Map # 1: Monday, 12:00 Noon Weather Map # 2: Tuesday, 12:00 Noon A) Based on the information in Weather Map #2, describe the expected weather conditions in Bay Roberts and Corner Brook for Tuesday at 12:00 noon, and explain HOW you know. (18%) Weather Condition: Sky conditions for How You Know: Wind direction for Temperature for Sky conditions for Wind direction for Temperature for
B) The straight-line distance from St. John s to Corner Brook is 416 km. Use this information to answer the following questions: (i) Approximately how far has the L moved in the past 24 hours? (2%) SHOW YOUR CALCULATION (ii) What is the approximate speed of the L? (Remember; v = d/t)(2%) SHOW YOUR CALCULATION