ExamsF02 - PHYSICS103 First Quiz 24 September 2002 Please...

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PHYSICS 103 First Quiz 24 September 2002 Please put the letter corresponding to the best answer in the blanks at the left. Each question counts two points. 1. Let’s begin with a question that everyone should get correct. The subject matter of this course is a. psychics b. physics c. fysix. d. phonics 2. Which of the following is not a valid criterion for the acceptance of a physical law or theory? a. agreement with past data b. based on scientific principles c. ability to predict future results d. prestige of the scientist proposing it 3. An operational definition is a a. logical argument for obtaining a law of physics b. method of excising the truth from nature c. medical procedure performed on a physics teacher d. rule for attaching a number to a concept 4. Bode's law giving the sizes of the orbits of the planets is no longer considered to be a physical law because it a. did not work for the data known at the time it was proposed b. it was not based on physical principles c. did not make any predictions that could be tested d. was actually proposed by the Titus of Wittenburg 5. Which of the following expressions gives the number of seconds in one week? a. 1 week 1 day 1 h 7 days 24 h 3600 s  ÷ ÷ ÷  b. 7 days 1 day 1 h 1 week 24 h 3600 s ÷ c. 1 week 24 h 3600 s 7 days 1 day 1 h ÷ ÷ d. 7 days 24 h 3600 s 1 week 1 day 1 h ÷ ÷ ÷ 6. Besides the United States, which of the following major countries has not adopted the metric system of units? a. No other b. Great Britain c. Australia d. Soviet Union 7. The height of the ceiling in this room is approximately a. 3 m b. 30 cm c. 300 mm d. 0.03 km 8. The average speed 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. change in the object’s velocity divided by the time this change takes. d. change in the object’s velocity multiplied by the time this change takes.
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9. A train covers 60 miles between 8 and 9 p.m. How fast was it going at 8:20 p.m.? a. 15 mph b. 30 mph c. 60 mph d. There is not enough information given to be able to say. 10. A red car takes ten minutes to go from milepost 101 to milepost 109. A yellow car takes ten minutes to go from milepost 11 to milepost 21. Which car has the higher average speed? a. the yellow one b. the red one c. The average speeds are the same. d. There is not enough information given to be able to say. 11. The steepness of the curve on a position versus time curve tells us the _____ of the object. a. displacement b. speed c. acceleration d. rapidity 12. If a marathoner can run with an average speed of 10 mph, how far could she run in 2 hours?
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ExamsF02 - PHYSICS103 First Quiz 24 September 2002 Please...

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