8-33. When the parcel descends on the other 

 side of the mountain to an altitude of 

 3,500 feet, its temperature will be 

 approximately 



1. 60.0° F 



2. 69.5° F 



3. 78.5° F 



4. 87.5° F 



8-34. If the temperature of a parcel of air 



drops at a rate of 9° F per 1,000 feet, 

 its lapse rate is 



1. dry 



2. average 



3. autoconvective 



4. superadiabatic 



Learning Objective: Recognize terms, 

 principles, and laws associated with 

 mass, force, and motion, including 

 Newton's laws, pressure gradient 

 force, Corlolis effect, centrifugal 

 force, and centripetal force. 



3-35. Which of the following is the correct 

 meteorological phrase used to indicate 

 air movement when both direction and 

 rate of movement are involved? 



1. Speed 



2. Acceleration 



3. Velocity 



4. Direction and speed 



In items 8-36 through 8-38, select from column B 

 the descriptive term applied to each of Newton's 

 laws of motion in column A. 



A. Laws of Motion B. Descriptive Terms 



8-36. First 



8-37. Second 



8-38. Third 



1. Force and accel- 

 eration 



2. Circular motion 



3. Inertia 



4. Reacting forces 



8-39. In the metric system, d in the formula 

 W = Fd is measured in which of the 

 following units? 



1. Centimeters 



2. Joules 



3. Dynes 



4. Ergs 



8-40. What term is used to identify the work 

 accomplished by the force of one dyne 

 which moves a mass a distance of one 

 centimeter? 



1. Joule 



2. Foot-pound 



3. Erg 



4. Force-pound 



8-41. In the study of atmospheric physics, what 

 type of energy is the energy of motion? 



1. Potential energy 



2. Kinetic energy 



3. Latent energy 



4. Dynamic energy 



8-42. Air is moved from a high-pressure area to 

 a low-pressure area by the action of the 



1. pressure gradient force 



2. centrifugal effect 



3. Coriolis effect 



4. centripetal force 



8-43. The wind would blow at right angles 



across isobars if the only force affect- 

 ing windflow was the 



1. Coriolis force 



2. pressure gradient force 



3. centripetal force 



4. centrifugal force 



8-44. Which of the following statements most 



correctly describes the action of Coriolis 

 effect on air mass? 



1. The effect is greatest at the poles, 

 decreases to zero effect at the 

 Equator, and right or left deflection 

 in the intermediate zones depends upon 

 the latitude and speed of the moving 

 air mass 



2. The effect is nonexistent at the Equa- 

 tor, increases to maximum effect at 

 the poles, deflects air to the left 



of its path in the Southern Hemisphere, 

 and to the right of its path in the 

 Northern Hemisphere 



3. The intensity of the effect and right 

 or left deflection are dependent upon 

 the speed and temperature of the 

 moving air mass 



4. The effect is nonexistent at the Equa- 

 tor, increases to maximum effect at 

 the poles, deflects air to the right 



of its path in the Southern Hemisphere, 

 and to the left of its path in the 

 Northern Hemisphere 



8-45. \ ich force compels an object to be thrown 

 out from its center .of rotation? 



1. Centrifugal 



2. Gravitational 



3. Centripetal 



4. Centrical 



48 



