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Final Exam December 16, 2004 Name (Print, Last first): Signature: on My Honor, I Have Neither Given Nor Received Unauthorized Aid on This Examination

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Final Exam December 16, 2004 Name (Print, Last first): Signature: on My Honor, I Have Neither Given Nor Received Unauthorized Aid on This Examination 21111 21111 Instructor(s): Prof. Seiberling PHYSICS DEPARTMENT MET 1010 Final Exam December 16, 2004 Name (print, last ¯rst): Signature: On my honor, I have neither given nor received unauthorized aid on this examination. YOUR TEST NUMBER IS THE 5-DIGIT NUMBER AT THE TOP OF EACH PAGE. (1) Code your test number on your answer sheet (use 76{80 for the 5-digit number). Code your name on your answer sheet. DARKEN CIRCLES COMPLETELY. Code your UFID number on your answer sheet. (2) Print your name on this sheet and sign it also. (3) Do all scratch work anywhere on this exam that you like. Circle your answers on the test form. At the end of the test, this exam printout is to be turned in. No credit will be given without both answer sheet and printout with scratch work most questions demand. (4) Blacken the circle of your intended answer completely, using a #2 pencil or blue or black ink. Do not make any stray marks or some answers may be counted as incorrect. (5) The answers are rounded o®. Choose the closest to exact. There is no penalty for guessing. (6) Hand in the answer sheet separately. There are 33 multiple choice questions. Clearly circle the one best answer for each question. If more than one answer is marked, no credit will be given for that question, even if one of the marked answers is correct. Guessing an answer is better than leaving it blank. All questions are worth 3 points except 1, marked 4 points. Good Luck! 1. Which of the following is NOT an electromagnetic wave? (1) blackbody radiation emitted by a rock (2) microwaves (3) visible light (4) sound waves (5) infrared radiation 2. What best describes a baroclinic condition? (1) when thunderstorms organize in a rotational motion (2) a sudden change in air pressure that causes hives in some people (3) when isotachs are parallel to isobars (4) when dew points rise while temperatures drop (5) when isotherms cross contour lines 3. A cold front is moving through your area, traveling from the northwest. During the passage of the cold front, surface winds will most likely blow in the following way: (1) they will be northwesterly both before and after the front passes (2) they will be southwesterly before and southeasterly after the front passes (3) they will be southeasterly both before and after the front passes (4) they will be northwesterly before and calm after the front passes (5) they will be southwesterly before and northwesterly after the front passes 4. Which is true about the change of state between water and ice? (1) the vapor pressure above water and ice at the same temperature is the same (2) if heat is added slowly to an ice/water mixture that stays in equilibrium, the temperature of the mixture will slowly rise (3) pure water can be lowered to temperatures well below 0±C before freezing starts (4) freezing water absorbs latent heat (5) pure water can be raised to temperatures well above 0±C before melting starts 21111 21111 5. A wind reported at 315± would be a wind blowing from the: (1) S (2) NW (3) NE (4) SW (5) SE 6. You are at latitude 30± South (in the southern hemisphere), and the date is December 21. In what direction would you observe sunrise? (1) directly east (2) south of west (3) north of east (4) south of east (5) north of west 7. According to the 3-cell general circulation model, at the equator we would NOT expect to ¯nd: (1) cumuliform clouds (2) heavy showers (3) the ITCZ (4) light winds (5) surface high pressure 8. Upwelling occurs along the northern California coast because: (1) water flows from the Atlantic into the Paci¯c because they are at di®erent levels (2) winds cause surface waters to move away from the coast (3) of tidal motions (4) of larger than normal ¯sh hatches in El Nino years (5) of seismic activity on the ocean bottom 9. Which of the following is NOT a usual way that clouds are formed? (1) lifting along weather fronts (2) convergence of surface air (3) surface heating and free convection (4) orographic uplift (5) a subsidence inversion 10. The force exerted by the wind blowing against an object is related to the wind speed, V , as: (1) F is not a function of V (2) F is proportional to V 3 (3) F is proportional to V (4) F is proportional to V 2 (5) F is proportional to the square root of V 11. A general trend that is expected to last for 2 or 3 decades and is expected to enhance hurricane activity in the North Atlantic is: (1) increasing levels of CO2 (2) global warming (3) increased volcanic activity (4) a strengthening ocean conveyor belt (5) increasing eccentricity of the earth's orbit 21111 21111 12. Which of the following statements is NOT correct? (1) Generally, the smaller the pure water droplet, the lower the temperature at which it will freeze. (2) Much of the rain falling in middle northern latitudes begins as snow. (3) Ice crystals may grow in a cold cloud even though supercooled droplets do not. (4) Ice nuclei are more plentiful in the atmosphere than condensation nuclei. (5) The larger the water drop, the higher its terminal velocity. 13. (4 points) Suppose the surface air temperature is 25±C. If the base of a cumulus cloud directly above you is 800 m, what would be the approximate temperature at an altitude of 2300 m above you inside the cloud? (Hint: the dry adiabatic rate is 10±C per 1000 m and the moist adiabatic rate is 6±C per 1000 m.) (1) 25±C (2) 42±C (3) 8±C (4) 35±C (5) 2±C 14. Which of the following is true about the stratosphere? (1) it contains most of the weather we are familiar with (2) it has a temperature inversion (3) ozone is the most abundant gas (4) the winds are generally calm (5) it is mostly warmer than the lower troposphere 15. Light or moderate-but-steady precipitation is most often associated with: (1) cirrostratus (2) altocumulus (3) cirrocumulus (4) cumulonimbus (5) nimbostratus 16. In the region between 30± and 60± South latitude, the winds are generally: (1) westerly (2) easterly (3) southerly (4) calm (5) northerly 17. Which below is the best indication that a severe thunderstorm is about to produce a tornado? (1) large hail (2) a mammatus cloud (3) a gust front (4) a wall cloud (5) a roll cloud 18. When viewed from the surface of the earth, the smallest individual cloud elements (pu®s) are observed with: (1) stratocumulus (2) cumulonimbus (3) cirrocumulus (4) altocumulus (5) cumulus 19. A building anticyclone means: (1) separate cyclones are merging (2) the anticyclone is causing a middle latitude storm to form (3) the central pressure is increasing (4) the central pressure is decreasing (5) the anticyclone is moving toward the east coast 21111 21111 20. Which of the following statements describe the snow-albedo positive feedback e®ect? (1) Rising temperatures would lead to melting of snow, which absorbs latent heat and causes cooling of the earth. (2) Rising temperatures would lead to more snow, which would reflect sunlight, leading to lower temperatures. (3) Lowering temperatures would produce more snow, which would trap infrared energy and cause a warming of the earth. (4) Lowering temperatures would produce more snow, which would reflect sunlight, leading to lower temperatures. (5) Lowering temperatures would lead to less snowfall, which would reflect less sunlight, leading to a warming of the earth. 21. Streamlines on a weather map depict: (1) ocean currents (2) pressure (3) water temperature (4) dew point (5) wind flow 22. Which of the following conditions would lead to a more UNSTABLE atmosphere? (1) daytime heating of the earth's surface (2) nighttime cooling of the earth's surface (3) a subsidence inversion (4) air moving over a cold surface (5) an environmental lapse rate less than the moist adiabatic rate 23. Severe thunderstorms are di®erent from air-mass thunderstorms in that severe thunderstorms: (1) have a strong updraft and downdraft (2) contain lightning and thunder (3) produce hail (4) have an anvil (5) have a tilted updraft in the mature stage 24. Hurricanes derive their energy primarily from: (1) latent heat (2) upper level winds (3) the trade winds (4) the Coriolis force (5) the trade wind inversion 25. The blue color of the sky is due to: (1) the ¯ltering e®ect of water vapor in the earth's atmosphere (2) the emission of blue light by oxygen molecules (3) transmission of visible light through the ozone layer (4) selective scattering of visible light by air molecules (5) reflection of sunlight o® of the earth's oceans 26. Around a surface high pressure system in the Southern Hemisphere, the surface winds blow: (1) counter-clockwise and inward (2) counter-clockwise and outward (3) clockwise and inward (4) in no particular direction (5) clockwise and outward 21111 21111 27. Which association below is NOT correct? (1) cirrocumulus | layer cloud (2) cumulonimbus | thunderstorm (3) altostratus | middle cloud (4) cirrostratus | ice cloud (5) stratocumulus | low cloud 28. Which of the following properties of an object is something that enhances its ability to get hot when radiant energy is applied to it? (1) low melting point (2) high heat capacity (3) low albedo (4) high thermal conductivity (5) high porosity 29. The most abundant gas in the atmosphere is: (1) argon (2) carbon dioxide (3) oxygen (4) water vapor (5) nitrogen 30.
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