PHYSICS 201 Fundamentals of Physics 7th Edition Test Bank
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Chapter 1: MEASUREMENT 1. The SI standard of time is based on: A. the daily rotation of the earth B. the frequency of light emitted by Kr86 C. the yearly revolution of the earth about the sun D. ... a precision pendulum clock E. none of these Ans: E 2. A nanosecond is: A. 109 s B. 10−9 s C. 10−10 s D. 10−10 s E. 10−12 Ans: B 3. The SI standard of length is based on: A. the distance from the north pole to the equator along a meridian passing through Paris B. wavelength of light emitted by Hg198 C. wavelength of light emitted by Kr86 D. a precision meter stick in Paris E. the speed of light Ans: E 4. In 1866, the U. S. Congress defined the U. S. yard as exactly 3600/3937 international meter. This was done primarily because: A. length can be measured more accurately in meters than in yards B. the meter is more stable than the yard C. this definition relates the common U. S. length units to a more widely used system D. there are more wavelengths in a yard than in a meter E. the members of this Congress were exceptionally intelligent Ans: C 5. Which of the following is closest to a yard in length? A. 0.01 m B. 0.1 m C. 1 m D. 100 m E. 1000 m Ans: C [Show More]
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