# Physics Test

Jun 16th, 2015
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1. Since 1983 the standard meter has been defined in terms of which of the following?a. specific alloy bar housed at Sevres, France b. wavelength of light emitted by krypton-86 c. distance from the Earth's equator to the North Pole d. the distance light travels in a certain fraction of a second

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Chapter 1IntroductionMULTIPLE CHOICE1. Since 1983 the standard meter has been defined in terms of which of the following?a. specific alloy bar housed at Sevres, Franceb. wavelength of light emitted by krypton-86c. distance from the Earth's equator to the North Poled. the distance light travels in a certain fraction of a second2. Since 1967 the standard definition for the second has been based on which of the following?a. characteristic frequency of the cesium-133 atomb. average solar dayc. sidereal dayd. Greenwich Civil Time3. In mechanics, physicists use three basic quantities to derive additional quantities. Mass is one of the three quantities. What are the other two?a. length and forceb. power and forcec. length and timed. force and time4. The prefixes which are abbreviated p, n, and G represent which of the following?a. 10-2, 10-6, and 1015b. 109, 106, and 1010c. 1012, 109, and 109d. 1015, 106, and 10125. The ratio M/m of the prefixes M and m has what value?a. 103b. 106c. 109d. 10186. One year is about ____ seconds while one day is exactly ____ seconds.a. , 86 400b. , 86 400c. , 8 640d. , 36 0007. The nuclei of

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