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Unformatted text preview: PHYSICS 103 Name Seat First Quiz - A Optional 7 February 2002 Please put the letter corresponding to the best answer in the blanks at the left. Each question counts two points. 1. I am very happy that the first question is an easy one to get me off to a good start in this course. The subject matter of this course is a. physics. b. philosophy. c. psychiatry. d. psychology. 2. In physics a world view is a. the visual stimuli that allow the physicist to experience the microscopic world. b. the idea that the sun is at the center of the solar system. c. a shared set of ideas that represents the current explanations of how the material world operates. d. the unchanging rules used to predict the behavior of physical systems. 3. To convert a speed in miles per hour to a speed in meters per second you must multiply by a. 1600 m 3600 s 1 mile 1 h b. 1600 m 1 h 1 mile 3600 s c. 1 mile 3600 s 1600 m 1 h d. 1 mile 1 h 1600 m 3600 s 4. How many meters are there in one kilometer? a. 0.001 b. 100 c. 1000 1,000,000 5. A cruise ship covers a distance of 64 miles during the watch that lasts from 4:00 pm to midnight. How fast was the ship going at 8:00 pm? a. 64 miles/hour b. 64 miles c. 8 miles/hour d. We don't have enough information to be able to say. 6. The average velocity of an object is defined to be the a. distance the object travels divided by the time it takes. b. distance the object travels multiplied by the time it takes. c. objects displacement divided by the time it takes. d. objects displacement multiplied by the time it takes. 7. A Ford takes ten minutes to go from milepost 121 to milepost 131. A Toyota takes ten minutes to go from milepost 139 to milepost 141. Which car has the higher average speed? a. the Toyota b. the Ford c. The average speeds are the same. 8. Approximately how fast can a person run? a. 1 m/s b. 10 m/s c. 100 m/min d. 1 km/h 9. The average acceleration of an object is defined to be the a. change in its velocity divided by the time this change takes. b. distance it travels divided by the time it takes. c. change in its speed divided by the time this change takes. d. average of the accelerations during the two halves of the trip. 10. The steepness of the curve on a position versus time graph is a measure to the objects a. displacement b. speed c. acceleration 11. A car is accelerating at 5 m/s 2 . At some time it is traveling at 40 m/s. How fast will it be going three seconds later?...
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- Fall '02