Chapter 01 - Measurement 1. A pint of water (on Earth) is approximately a. 1 pound. b. 1 gram. c. 1 kilogram. d. 1 quart. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 2. Historically, which measurement may have been defined as the distance from the royal nose to the thumb of the royal outstretched arm? a. 1 foot b. 1 yard c. 1 meter d. 1 kilometer ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 3. In a debate, is the statement "It's only a theory" a valid argument point against a theory (as in "The theory of evolution is wrong because it's only a theory")? a. Yes, theories are weak. b. No, theories are strong. c. No, theories are weak. d. Yes, theories are meaningless. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 4. Which of the following is not considered a major physical science: a. Physics b. Astronomy c. Geology d. Biology e. Meteorology ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 5. The word science comes from the Latin word meaning a. "experiment." b. "investigate."
Chapter 01 - Measurement c. "knowledge." d. "debate." ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 6. The most information about our environment comes to us through the sense of a. smell. b. sight. c. hearing. d. touch. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 7. Our senses may obtain less-than-accurate information concerning our physical world because they a. have limited sensitivity. b. have a limited range. c. are useless. d. can be deceived. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 8. A quantitative observation that is the basis of scientific investigation is a(n) a. experiment. b. measurement. c. explanation. d. number. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 9. A scientific law describes a. the scientific method. b. a fundamental relationship of nature. c. the behavior of nature. d. an experiment. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement 10. A very tentative explanation of observations of some regularity of nature is a(n) a. scientific law. b. theory. c. experiment. d. hypothesis. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 11. A successfully tested hypothesis may take on the status of a(n) a. experimental result. b. theory. c. scientific law. d. concept. e. superior hypothesis. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 12. A standard unit a. is the same in all systems of units. b. may not be fixed in value. c. is found only in the British system. d. is used for taking accurate measurements. e. is found only in the metric system. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 13. The standard unit of time is the a. hour. b. day. c. second. d. minute. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 14. Which of the following is not a fundamental quantity? a. Weight b. Length c. Time Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement d. Mass ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 15. Which fundamental quantity does the average person measure most often every day? a. Mass b. Length c. Time d. Electric charge ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 16. Which has a larger mass, a liter of water or a liter of mercury (a liquid metal)? a. mercury b. water c. none of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 17. Which has a larger volume, a liter of water or a liter of mercury (a liquid metal)? a. water b. mercury c. none of these ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 18. The mass of a cubic meter of water is a. 1 metric ton. b. 100 kg. c. 100 L. d. 1 lb. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 19. Which statement is incorrect? a. A kilogram has an equivalent weight greater than that of a pound. b. A kilometer is longer than a mile. Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement c. A meter is longer than a yard. d. A liter is larger than a quart. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 20. Which has more volume, a liter or a quart? a. A liter b. A quart c. Both are the same d. Neither describes volume ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 21. Which of the following is not a standard metric unit? a. Kilogram b. Meter c. Second d. Gram ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 22. The standard unit of mass in the mks system is the a. meter b. kilogram c. pound d. second e. gram ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 23. The standard unit of time in the mks system is the a. meter b. kilogram c. second d. minute e. microsecond ANSWER: c Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement POINTS: 1 QUESTION TYPE: Multiple Choice 24. The standard unit of distance in the mks system is the a. centimeter b. inch c. kilometer d. meter e. second ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 25. The standard unit of length, the meter, is now defined with reference to a. a meridian on the Earth. b. the French meter. c. the speed of light. d. a platinum-iridium bar. e. a member of the royal family. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 26. The standard unit of time, the second, is now defined with reference to a. the Earth's revolution period. b. the mean solar day. c. the cesium-133 atom. d. the Earth's rotation period. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 27. The current definition of a kilogram is the mass of a platinum-iridium cylinder kept in a. the United States. b. France. c. England. d. Japan. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 28. In what year did the United States officially adopt the metric system? Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement a. 1893 b. 1995 c. 2011 d. 1776 e. none of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 29. The meter was defined originally as a. one ten-millionth of the diameter of Earth. b. one ten-millionth of the distance from the equator to the North Pole. c. the wavelength of a line in the spectrum of krypton-86. d. the length of a platinum-iridium bar. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 30. The meter is presently defined as a. one ten-millionth of the diameter of Earth. b. the wavelength of a line in the spectrum of krypton-86. c. the length of a platinum-iridium bar. d. the distance light travels in a vacuum in a very short time. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 31. The metric prefix that means one-hundredth (1/100) is a. kilo-. b. centi-. c. mega-. d. milli-. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 32. The metric prefix that means one-thousandth (1/1000) is a. kilo-. b. centi-. c. milli-. d. nano-. Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 33. The metric prefix that means one thousand (1000) is a. kilo-. b. centi-. c. mega-. d. milli-. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 34. The metric prefix that means one million (1,000,000) is a. centi-. b. mega-. c. milli-. d. nano-. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 35. The metric prefix that means ten (10) is a. deci b. deka c. milli d. centi e. kilo ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 36. The metric prefix that means one tenth (1/10) is a. deka b. deci c. centi d. milli e. none of these ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement 37. A cubic centimeter of pure water at maximum density has a mass of a. 1 g. b. 1 kg. c. 1 cg. d. 1 lb. e. none of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 38. In the SI, m is the symbol for a. mass. b. meter. c. mole. d. metric. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 39. Which of the following is a unit of mass density? a. kg/m3 b. g/cm2 c. lb/ft3 d. lb/ft2 ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 40. One kilogram is the same as a. 1000 g. b. 1/1000 kg. c. 10,000 g. d. 0.001 g. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 41. An object's weight would be different on Earth and on the Moon. Which of the following would also be different? a. Mass density b. Mass c. Length Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement d. Volume e. None of these ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice 42. An object transported from Earth's surface to the surface of the Moon has a. the same mass, but different weight. b. the same weight, but different mass. c. the same mass and the same weight. d. different mass and different weight. e. none of these. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 43. In buying a product, a shopper has a choice of the following amounts, all at the same price. Which is the best buy? a. 432 cc b. 1 pint c. 1 half-liter d. 450 mL ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 44. A hydrometer is used to measure a. the time for an object to sink. b. water (hydro). c. the volume of a quantity of water. d. liquid density. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 45. Which of the following is not a derived quantity? a. Volume b. Speed c. Mass d. Density ANSWER: c POINTS: 1 Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement QUESTION TYPE: Multiple Choice 46. The International System of Units (SI) has ______________ base units. a. four b. six c. seven d. five ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 47. What is the mass of 25 cm3 of pure water? a. None of these b. 25 kg c. 25 g d. 25 mL ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 48. A derived unit a. involves only length. b. is a combination of units. c. applies only to density. d. is not found in the metric system. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 49. A metric ton (or tonne) is a. the same as a British ton. b. not defined. c. a mass unit. d. a weight unit. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 50. Which of the following quantities expressed in derived units includes the unit of length? a. Area b. Volume c. Speed Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement d. Density e. All of these ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice 51. Density describes a. mass per unit volume. b. length per unit time. c. volume per liter. d. weight per mass. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 52. A relationship such as 1 in. = 2.54 cm is a(n) a. equivalence statement. b. base unit. c. derived unit. d. fundamental quantity. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 53. A method of expressing the accuracy of measured quantities is a. metric prefixes. b. derived units. c. significant figures. d. conversion factors. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 54. When multiplying and/or dividing quantities, you should report a. the result rounded to the same number of digits as there are in the quantity with the greatest number of significant figures. b. all the digits that show on your calculator.
c. only whole numbers. d. the result rounded to the same number of digits as there are in the quantity with the least number of significant figures.
ANSWER: POINTS:
d 1
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Chapter 01 - Measurement QUESTION TYPE: Multiple Choice 55. Rounding the number 200.601 to three significant figures a. gives 199. b. gives 200. c. gives 200.601 d. gives 201. e. cannot be done. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 56. Expressed in standard powers-of-10 notation and rounded to four significant figures, the number 0.00023648 is a. 2.364 × 103. b. 2.365 × 104. c. 2.365 × 10-4. d. 236.4 × 10-6. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 57. One microgram (μg) contains how many grams? a. 10-3 b. 10-6 c. 10-9 d. 103 ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 58. One megawatt contains how many watts? a. 103 b. 10-6 c. 106 d. 10-3 ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 59. The speed of light in a vacuum is 300,000,000 m/s. Represented in powers-of-10 notation, this is a. 30 × 108m/s. Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement b. 3 × 107m/s. c. 30 × 106m/s. d. 3 × 108m/s. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 60. A measurement of 0.00254 g is the same as a. 0.254 mg. b. 25.4 mg. c. 254 mg. d. 2.54 mg. e. none of these. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 61. For the multiplication of 4.769 m times 7.20 m, the result should be reported with how many significant figures? a. Two b. One c. Three d. Four e. Seven ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 62. For the multiplication of 7.443 m times 8.5 m, the result should be reported with how many significant figures? a. Two b. One c. Three d. Four e. Seven ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 63. For the multiplication of 4.4 m times 1.5 m, the result should be reported with how many significant figures? a. Two Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement b. One c. Three d. Four e. Seven ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 64. For the multiplication of 4.212 m divided by 7.60 m, the result should be reported with how many significant figures? a. Two b. One c. Three d. Four e. Seven ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 65. For the multiplication of 2.817 m divided by 6.3 m, the result should be reported with how many significant figures? a. Two b. One c. Three d. Four e. Seven ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 66. For the multiplication of 6.3 m divided by 2.8 m, the result should be reported with how many significant figures? a. Two b. One c. Three d. Four e. Seven ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 67. When the measured quantity 45.67 kg is divided by the measured quantity 3.42 L, the answer should have Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement how many significant figures? a. Three b. One c. Four d. Two ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 68. The natural sciences are divided into ______________ sciences and biological sciences. ANSWER: physical POINTS: 1 QUESTION TYPE: Subjective Short Answer 69. The natural sciences are divided into physical sciences and ______________ sciences. ANSWER: biological POINTS: 1 QUESTION TYPE: Objective Short Answer 70. A scientific law is a concise statement that describes a(n) ______________ of nature. ANSWER: relationship (or regularity) POINTS: 1 QUESTION TYPE: Objective Short Answer 71. The scientific method holds that no theory is valid unless its predictions are in accord with ______________. ANSWER: experiment POINTS: 1 QUESTION TYPE: Objective Short Answer 72. A hypothesis is a very tentative explanation of some ______________ of nature. ANSWER: regularity (or relationship) POINTS: 1 QUESTION TYPE: Objective Short Answer 73. A(n) ______________ is a tested explanation of a broad segment of basic natural phenomena. ANSWER: theory POINTS: 1 QUESTION TYPE: Objective Short Answer 74. A proposed concept or model of nature is tested using the ______________. ANSWER: scientific method POINTS: 1 Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement QUESTION TYPE: Objective Short Answer 75. The three fundamental quantities studied in Chapter 1 are length, mass, and ______________. ANSWER: time POINTS: 1 QUESTION TYPE: Objective Short Answer 76. The measurement of space in any direction is called ______________. ANSWER: length POINTS: 1 QUESTION TYPE: Objective Short Answer 77. ______________ is the continuous forward flow of events. ANSWER: Time POINTS: 1 QUESTION TYPE: Objective Short Answer 78. ______________ is a measurement of the quantity of matter. ANSWER: Mass POINTS: 1 QUESTION TYPE: Objective Short Answer 79. An object's ______________would be the same on Earth and on the Moon, but its weight would be different. ANSWER: mass POINTS: 1 QUESTION TYPE: Objective Short Answer 80. An object's mass would be the same on Earth and on the Moon, but its ______________ would be different. ANSWER: weight POINTS: 1 QUESTION TYPE: Objective Short Answer 81. In the metric mks system of units, the letter k stands for ______________. ANSWER: kilogram POINTS: 1 QUESTION TYPE: Objective Short Answer 82. In the metric mks system of units, the letter m stands for ______________. ANSWER: meter POINTS: 1 QUESTION TYPE: Objective Short Answer 83. In the metric mks system of units, the letter s stands for ______________. Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement ANSWER: second POINTS: 1 QUESTION TYPE: Objective Short Answer 84. Time is sometimes thought of as a fourth dimension of ______________. ANSWER: space POINTS: 1 QUESTION TYPE: Objective Short Answer 85. SI stands for the ______________ of units. ANSWER: International System POINTS: 1 QUESTION TYPE: Objective Short Answer 86. On a computer, a megabyte of memory is ______________ bytes. ANSWER: one million (106) POINTS: 1 QUESTION TYPE: Subjective Short Answer 87. The meter is defined in terms of the speed of ______________. ANSWER: light POINTS: 1 QUESTION TYPE: Objective Short Answer 88. A metric ton is ______________ kg. ANSWER: 1000 POINTS: 1 QUESTION TYPE: Objective Short Answer 89. There are 10 mm in a(n) ______________. ANSWER: centimeter POINTS: 1 QUESTION TYPE: Objective Short Answer 90. In the metric system, a penny might be called a(n) ______________ dollar. ANSWER: centiPOINTS: 1 QUESTION TYPE: Objective Short Answer 91. The metric system is a(n)______________ system. ANSWER: decimal, or base-10 POINTS: 1 QUESTION TYPE: Objective Short Answer Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement 92. The British system is a(n) ______________ , or base-12 system. ANSWER: duodecimal POINTS: 1 QUESTION TYPE: Objective Short Answer 93. Given that 1 L = 0.266 gal, the conversion factor for converting gallons to liters would be ______________. ANSWER: 0.266 gal/L POINTS: 1 QUESTION TYPE: Objective Short Answer 94. The ratio of mass to volume is known as ______________. ANSWER: density POINTS: 1 QUESTION TYPE: Objective Short Answer 95. Liquid density may be measured with a(n) ______________. ANSWER: hydrometer POINTS: 1 QUESTION TYPE: Objective Short Answer 96. The standard unit of mass in the SI is the ______________. ANSWER: kilogram POINTS: 1 QUESTION TYPE: Objective Short Answer 97. One liter of pure water at its maximum density has a mass of 1 ______________. ANSWER: kg POINTS: 1 QUESTION TYPE: Objective Short Answer 98. The unit of density in the mks system is ______________. ANSWER: kg/m3 POINTS: 1 QUESTION TYPE: Subjective Short Answer 99. A set value for a fundamental quantity is called a(n) ______________ unit. ANSWER: standard POINTS: 1 QUESTION TYPE: Objective Short Answer 100. A combination of one or more fundamental units is called a(n) ______________ unit. ANSWER: derived Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement POINTS: 1 QUESTION TYPE: Objective Short Answer 101. A(n) ______________ is a comparison of an unknown physical quantity with the standard unit. ANSWER: measurement POINTS: 1 QUESTION TYPE: Objective Short Answer 102. A liter has a volume of ______________ cubic centimeters. ANSWER: 1000 POINTS: 1 QUESTION TYPE: Objective Short Answer 103. Which is longer, a meter or a yard? ANSWER: A meter POINTS: 1 QUESTION TYPE: Objective Short Answer 104. Which is larger, a liter or a quart? ANSWER: A liter POINTS: 1 QUESTION TYPE: Objective Short Answer 105. In ratio form, the equivalence statement 1 mi = 1.61 km would be expressed as ______________. ANSWER: 1.61 km/mi (or 1 mi/1.61 km) POINTS: 1 QUESTION TYPE: Objective Short Answer 106. For the multiplication of 8.704 m × 3.14 m, the result should be reported with ______________ significant figures. ANSWER: three POINTS: 1 QUESTION TYPE: Objective Short Answer 107. If the decimal point is shifted to the left in a number expressed in powers-of-10 notation, the exponent, or power of 10, is ______________. ANSWER: increased POINTS: 1 QUESTION TYPE: Objective Short Answer 108. If the decimal point is shifted to the right in a number expressed in powers-of-10 notation, the exponent, or power of 10, is ______________. Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement ANSWER: decreased POINTS: 1 QUESTION TYPE: Objective Short Answer 109. A student's height is 170 cm. Determine that student's height in inches. ANSWER: 66.9 in. POINTS: 1 QUESTION TYPE: Objective Short Answer 110. A friend from Europe asks what the length of a 100-yd football field would be in meters. After doing the conversion, what would you tell her? ANSWER: 91.4 m POINTS: 1 QUESTION TYPE: Objective Short Answer 111. How long is a 10.0-ft pole in meters? ANSWER: 3.05 m POINTS: 1 QUESTION TYPE: Objective Short Answer 112. A cubic container 20 cm on a side is filled with water. What is the mass of the water? ANSWER: 8 kg POINTS: 1 QUESTION TYPE: Objective Short Answer 113. Dry air has a density of 1.29 kg/m3. What would be the volume of a metric ton of air? ANSWER: 775 m3 POINTS: 1 QUESTION TYPE: Subjective Short Answer 114. Perform the operation of 147.02/0.338, and report the result with the proper number of significant figures in standard powers-of-10 notation. ANSWER: 4.35 102 POINTS: 1 QUESTION TYPE: Subjective Short Answer 115. Express 100 megadollars in standard powers-of-10 notation. ANSWER: 1.0 108 dollars POINTS: 1 QUESTION TYPE: Subjective Short Answer Cengage Learning Testing, Powered by Cognero
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Chapter 01 - Measurement 116. Calculate the product of 2.1 × 102 and 1.9 × 107. Express the answer in standard powers-of-10 notation. ANSWER: 3.99 109 POINTS: 1 QUESTION TYPE: Subjective Short Answer 117. Calculate the approximate number of seconds that a(n) 30-year-old student has lived. ANSWER: 9.5 108 s POINTS: 1 QUESTION TYPE: Subjective Short Answer 118. If there are 2.54 cm/in., how many inches are there per centimeter? ANSWER: 1/2.54 = 0.394 POINTS: 1 QUESTION TYPE: Objective Short Answer 119. Write 0.000852 in standard powers-of-10 notation. ANSWER: 8.52 10–4 POINTS: 1 QUESTION TYPE: Subjective Short Answer 120. What does 4 × 10-12 times 3 × 10-8 divided by 2 × 1024 equal? ANSWER: 6 10–44 POINTS: 1 QUESTION TYPE: Subjective Short Answer 121. What does 6 × 1012 times 3 × 10-9 divided by 2 × 10-17 equal? ANSWER: 9 1020 POINTS: 1 QUESTION TYPE: Subjective Short Answer
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Chapter 02 - Motion 1. Which one of the following is not an area of physics? a. Mechanics b. Optics c. Algebra d. Acoustics ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 2. Motion necessarily involves a. a change in velocity. b. a change in speed. c. a change in direction. d. a change in position. e. all of these ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 3. The magnitude of a displacement is ______________ the magnitude of the distance traveled. a. always unequal to b. less than or equal to c. always equal to d. greater than or equal to e. none of these; the two cannot be compared. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 4. Displacement divided by time gives a. average acceleration. b. average velocity. c. average speed. d. average distance. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 5. Average speed multiplied by time gives a. average acceleration. b. displacement. c. instantaneous speed. Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion d. distance. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 6. Distance covered per unit of time is called a. speed. b. acceleration. c. velocity. d. displacement. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 7. The straight-line distance and direction between two points are, together, called a. velocity. b. displacement. c. distance. d. acceleration. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 8. The magnitudes of two horizontal displacements are 4 m and 9 m, respectively. Given that the vectors may be in either the plus or the minus direction, they cannot be added together to give a total displacement of a. –13 m. b. –5 m. c. 5 m. d. 13 m. e. 4 m. ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice 9. A speedometer indicates ______________ if the automobile is traveling forward. a. instantaneous acceleration b. instantaneous speed c. instantaneous velocity d. average speed e. average acceleration ANSWER: b POINTS: 1 Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion QUESTION TYPE: Multiple Choice 10. If an object moves with constant velocity, a. its speed is constant. b. its direction is constant. c. its average speed is constant. d. its distance traveled per unit time is constant. e. all of these ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice 11. If the instantaneous velocity of an object is constant, then so is its a. velocity. b. distance. c. acceleration. d. displacement. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 12. The rate at which an object's velocity changes with time is called its a. instantaneous velocity. b. motion. c. speed. d. acceleration. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 13. An automobile's acceleration may be changed by using the a. windshield wipers. b. steering wheel. c. radio. d. horn. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 14. An automobile's acceleration cannot be changed by using the a. gas pedal. b. brake pedal. Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion c. steering wheel. d. stick shift. e. turn signal. ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice 15. An acceleration may result from a. a change in speed. b. a change in direction. c. a change in both speed and direction. d. all of these ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 16. For which of the following is the acceleration constant? a. Nonuniform speed b. Free fall c. Uniform circular motion d. None of these ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 17. Velocity is similar to speed, but a ________ is also involved in velocity. a. acceleration b. direction c. position d. scalar ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 18. Which one of the following is true for deceleration? a. The acceleration is in the direction opposite the motion. b. The acceleration is zero. c. The acceleration is necessarily negative. d. The velocity remains constant. ANSWER: a POINTS: 1 Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion QUESTION TYPE: Multiple Choice 19. The distance traveled by an automobile moving at a constant velocity is a. directly proportional to the time. b. directly proportional to the time squared. c. inversely proportional to the time squared. d. inversely proportional to the time. e. none of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 20. An object that is moving in a linear path with an acceleration in the direction opposite to the motion has a(n) ______________ velocity. a. constant b. increasing c. decreasing d. none of these ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 21. An object that is moving in a linear path with an acceleration at a right angle to the motion has a(n) ______________ velocity. a. changing b. increasing c. decreasing d. constant ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 22. An object that is moving in a linear path with an acceleration in the direction of motion has a(n) ______________ velocity. a. constant b. increasing c. decreasing d. none of these ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion 23. As a block slides down a 33° frictionless incline, its acceleration a. decreases with distance. b. remains constant. c. is greatest at the bottom of the incline. d. is greatest at the top of the incline. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 24. Which of the following is a possible unit of acceleration? a. m/s2 b. m × s c. m2/s d. m/s ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 25. If the magnitude of the velocity of an object increases, we may be sure that during the time of this increase, a. the object is accelerated. b. the acceleration of the object increases. c. the object is moving in a straight path. d. the object is changing direction. e. none of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 26. A freely falling object a. has a uniformly increasing velocity. b. is unaffected by gravity. c. has a uniformly increasing acceleration. d. has a uniformly increasing displacement. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 27. An object in free fall has a. a constant speed. b. a constant velocity. c. a velocity that changes 9.8 m/s each second. d. an acceleration that depends on its mass. Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 28. An object with a mass of 5 kg is dropped and takes 9 s to hit the ground. Then another object with a mass of 10 kg is dropped from the same point. How long does it take to hit the ground? a. 9 s b. 18 s c. 5 s d. 81 s e. 729 s ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 29. A car is moving down a freeway in a straight line at a constant rate of 32.0 m/s for 3.0 s. Its acceleration is a. 9.8 m/s2. b. 9.8 m/s. c. zero. d. 32.0 m/s. e. 11.0 m/s2. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 30. An object is dropped from a vertical distance of 25.5 m above the ground, and it takes 2.28 sec to fall that distance. A second identical object to launched from the same height, with a horizontal velocity of 45.9 m/s. How long does the second object take to fall the 25.5 m? a. More than 2.28 sec b. Almost 2.28 sec. c. Less than 2.28 sec d. Exactly 2.28 sec e. Much less than 2.28 sec ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 31. A freely falling object has a constant acceleration of 9.8 m/s2. This means that a. the object's displacement changes by 9.8 m every second squared. b. the object's speed increases by 9.8 m/s each second. c. the object's acceleration increases by 9.8 m/s2 each second. d. the object travels 9.8 m each second. Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 32. An object that is moving with an acceleration different from zero will always have a(n) ______________ velocity. a. changing b. increasing c. constant d. decreasing ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 33. The distance traveled by a dropped object in free fall is directly proportional to a. the time squared. b. its weight. c. its mass. d. none of these. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 34. Which of the following statements is not true? a. Displacement has a direction and a magnitude. b. Acceleration has a magnitude only. c. Speed has a magnitude only. d. Velocity has a magnitude and a direction. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 35. All the following may be represented by vectors except a. velocity. b. acceleration. c. speed. d. displacement. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 36. An object in uniform circular motion has Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion a. constant acceleration. b. variable radial distances. c. constant velocity. d. constant speed. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 37. In the equation ac= v2/r for centripetal acceleration, the r stands for a. diameter. b. distance. c. radius. d. rate. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 38. In the equation ac= v2/r for centripetal acceleration, the v stands for a. volume. b. very. c. speed. d. velociraptor. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice 39. An object travels in a circle of radius 2.0 m with a constant speed of 4.0 m/s. What is the direction of its acceleration? a. Toward the center of the circle b. Normal to the plane of the circle c. Insufficient data given for determination d. Tangential to the circle e. None of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 40. Centripetal means a. center seeking b. pulls outward c. constant Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion d. fast e. none of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 41. The magnitude of the acceleration of an object moving in a circle at constant speed is a. variable. b. directly proportional to the speed squared. c. directly proportional to the speed. d. directly proportional to the radius of the circle squared. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 42. The direction of the acceleration of an object moving in a circle at constant speed is a. changing, but pointing in a predictable direction. b. constant and pointing in only one direction. c. constant and pointing in two directions. d. none of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 43. The magnitude of the acceleration of an object moving in a circle at constant speed is a. inversely proportional to the speed squared. b. inversely proportional to the speed. c. inversely proportional to the radius of the circle squared. d. inversely proportional to the radius of the circle. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 44. If the speed of an object in circular motion is increased by a factor of 3, its centripetal acceleration for the same radius will be multiplied by a factor of a. 0.111. b. 0.333. c. 1.73. d. 9. e. 3. ANSWER: d POINTS: 1 Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion QUESTION TYPE: Multiple Choice 45. A projectile's vertical velocity component a. changes most rapidly near the top of its trajectory. b. changes at a constant rate. c. changes most rapidly near the bottom of its trajectory. d. does not change. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice 46. A projectile's horizontal velocity component (ignoring air resistance) a. does not change. b. changes most rapidly near the bottom of its trajectory. c. changes at a variable rate. d. changes at a constant rate. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 47. In projectile motion, which of the following is not constant? a. Vertical velocity b. Horizontal velocity c. Acceleration d. None of these ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 48. A golfer hits a ball on a level fairway at an angle of 60° relative to the horizontal, and it lands on the green. Another golfer hits a ball with the same speed but at another angle, and it lands on the green by the other ball. What was the launch angle for the second golfer? a. 30° b. 20° c. 45° d. 40° e. 10° ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 49. A golfer hits a ball on a level fairway at an angle of 30° relative to the horizontal, and it lands on the green. Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion Another golfer hits a ball with the same speed but at an angle of 60°, and it lands on the green by the other ball. Which statement is accurate for this situation? a. One ball is in the air longer than the other. b. One ball experiences a greater acceleration while in free flight. c. One ball experiences a smaller acceleration while in free flight. d. Two balls hit at the same speed but different angles will always land in the same location. e. Two balls hit at the same speed but different angles can never land in the same location. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice 50. When running and jumping to score, a basketball player seems to “hang” in the air because a. his or her acceleration is zero. b. his or her horizontal velocity is quite small. c. both components of motion are zero. d. his or her vertical velocity is quite small. e. levitation is possible with practice. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice 51. A continuous change in position is called ______________. ANSWER: motion POINTS: 1 QUESTION TYPE: Objective Short Answer 52. The straight-line distance and direction between two points are, together, called ______________. ANSWER: displacement POINTS: 1 QUESTION TYPE: Objective Short Answer 53. Distance is a(n) ______________ quantity. ANSWER: scalar POINTS: 1 QUESTION TYPE: Objective Short Answer 54. A speedometer registers ______________. ANSWER: instantaneous speed POINTS: 1 QUESTION TYPE: Objective Short Answer 55. A compass registers ______________. ANSWER: direction Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion POINTS: 1 QUESTION TYPE: Objective Short Answer 56. Speed is a(n) ______________ quantity. ANSWER: scalar POINTS: 1 QUESTION TYPE: Objective Short Answer 57. For there to be an acceleration, there must necessarily be a change in ______________. ANSWER: velocity POINTS: 1 QUESTION TYPE: Objective Short Answer 58. If an object has a constant velocity, then its acceleration is ______________. ANSWER: zero POINTS: 1 QUESTION TYPE: Objective Short Answer 59. In free fall, the ______________ is constant. ANSWER: acceleration POINTS: 1 QUESTION TYPE: Objective Short Answer 60. Physics deals with matter, motion, force, and ______________. ANSWER: energy POINTS: 1 QUESTION TYPE: Objective Short Answer 61. Physics deals with force, energy, motion, and ______________. ANSWER: matter POINTS: 1 QUESTION TYPE: Objective Short Answer 62. Free-fall motion neglects ______________. ANSWER: frictional effects, or air resistance POINTS: 1 QUESTION TYPE: Objective Short Answer 63. A rifle bullet shot horizontally has a vertical acceleration of ______________. ANSWER: 9.8 m/s2, or 32 ft/s2 (gravity) POINTS: 1 QUESTION TYPE: Subjective Short Answer Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion 64. Dropped objects on the Moon fall at a slower rate than on Earth because of a smaller ______________. ANSWER: acceleration due to gravity POINTS: 1 QUESTION TYPE: Objective Short Answer 65. The distance a dropped object travels is proportional to the ______________ of the time. ANSWER: square POINTS: 1 QUESTION TYPE: Objective Short Answer 66. In straight-line motion, if a moving object slows down, the direction of the acceleration is ______________ the direction of the velocity. ANSWER: opposite to, or antiparallel to POINTS: 1 QUESTION TYPE: Objective Short Answer 67. In straight-line motion, if a moving object speeds up, the direction of the acceleration is ______________ the direction of the velocity. ANSWER: along, the same as, or parallel to POINTS: 1 QUESTION TYPE: Objective Short Answer 68. On Earth, the magnitude of the acceleration of a vertical projectile at its maximum height is equal to ______________. ANSWER: g, or 9.8 m/s2 POINTS: 1 QUESTION TYPE: Subjective Short Answer 69. On Earth, the magnitude of the velocity of a vertical projectile at its maximum height is equal to ______________. ANSWER: zero POINTS: 1 QUESTION TYPE: Objective Short Answer 70. A(n) ______________ quantity has both magnitude and direction. ANSWER: vector POINTS: 1 QUESTION TYPE: Objective Short Answer 71. A(n) ______________ quantity has only magnitude. ANSWER: scalar POINTS: 1 QUESTION TYPE: Objective Short Answer Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion 72. Temperature is an example of a(n) ______________ quantity. ANSWER: scalar POINTS: 1 QUESTION TYPE: Objective Short Answer 73. An object moving in a circle with a constant speed has a(n) ______________ directed toward the center of the circle. ANSWER: acceleration POINTS: 1 QUESTION TYPE: Objective Short Answer 74. ______________ acceleration is necessary for uniform circular motion. ANSWER: Centripetal POINTS: 1 QUESTION TYPE: Objective Short Answer 75. What two quantities are constant in uniform circular motion? ______________ and ______________ ANSWER: radial distance (radius); speed POINTS: 1 QUESTION TYPE: Objective Short Answer 76. The SI unit of centripetal acceleration is ______________. meters per second squared (m/s2) POINTS: 1 QUESTION TYPE: Subjective Short Answer ANSWER:
77. The centripetal acceleration of an automobile in uniform circular motion on a flat circular track is supplied by ______________. ANSWER: friction POINTS: 1 QUESTION TYPE: Objective Short Answer 78. For an object in uniform circular motion, the acceleration points toward ______________. ANSWER: the center of the circle POINTS: 1 QUESTION TYPE: Objective Short Answer 79. A rifle bullet shot horizontally at a velocity of 9.8 m/s has a horizontal acceleration of ______________. ANSWER: zero POINTS: 1 QUESTION TYPE: Objective Short Answer 80. Two objects are in uniform circular motion at the same speed but at different radii. The one with the Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion ______________ radius has the largest centripetal acceleration. ANSWER: smallest or least POINTS: 1 QUESTION TYPE: Objective Short Answer 81. At the maximum height of a projectile launched at an angle to the horizontal, the projectile's velocity is in a ______________ direction. ANSWER: horizontal POINTS: 1 QUESTION TYPE: Objective Short Answer 82. Under ideal conditions, a projectile with a given initial speed at an angle of 15° has the same range as a projectile at an angle of ______________ with the same initial speed. ANSWER: 75° POINTS: 1 QUESTION TYPE: Subjective Short Answer 83. Because of air resistance, an object falling a great distance may reach a ______________ velocity. ANSWER: terminal POINTS: 1 QUESTION TYPE: Objective Short Answer 84. A student travels from St. Louis to Indianapolis, a distance of 210 mi, in 6.0 h. The return trip over the same route takes 7.0 h. What is the average speed for a. the first half of the trip? b. the second half of the trip? c. the total trip? ANSWER: a. 35 mi/h b. 30 mi/h c. 32 mi/h POINTS: 1 QUESTION TYPE: Subjective Short Answer 85. On a trip, a family travels 200 km in 2.5 h on the first day, 300 km in 4.0 h on the second day, and 250 km in 3.5 h on the third day. What was the average speed, in kilometers per hour, for the total trip? ANSWER: 75 km/h POINTS: 1 QUESTION TYPE: Objective Short Answer 86. An automobile traveling on a straight, level road at 25 km/h speeds up to 70 km/h in 20 s. What was the magnitude of the auto's acceleration, in meters per second squared? ANSWER: 0.62 m/s2 POINTS:
1
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Chapter 02 - Motion QUESTION TYPE: Subjective Short Answer 87. An object is dropped (g = 9.80 m/s2) and falls for 5.00 s before hitting the ground. a. How far has the object fallen? b. What is the final velocity? c. What is the final acceleration? ANSWER: a. 123 m b. 49 m/s, downward c. 9.80 m/s2, downward POINTS: 1 QUESTION TYPE: Subjective Short Answer 88. A ball is thrown up in the air with an initial velocity of 58.8 m/s upward. How long does it take the ball a. to go up? b. to come down after reaching maximum height? ANSWER: a. 6.0 s b. 6.0 s POINTS: 1 QUESTION TYPE: Subjective Short Answer 89. The following data refer to a car traveling west: t (s) 0 1 2 3 4 -------------------------v (m/s) 30 25 20 15 10 Find the magnitude and direction of the acceleration. ANSWER: –5.0 m/s2, or 5.0 m/s2 east POINTS: 1 QUESTION TYPE: Subjective Short Answer 90. A car travels at a constant speed of 95.0 km/h around a circular track with a diameter of 1.00 km. What is the magnitude of the car's centripetal acceleration, and what supplies this? ANSWER: 1.39 m/s2, friction POINTS: 1 QUESTION TYPE: Subjective Short Answer 91. The following are data for an accelerating car: t (s) 0 5 10 15 20 -----------------------v (m/s) 0 3 6 9 12 a. Is this car undergoing uniform acceleration? b. If so, what is the acceleration? ANSWER: a. Yes b. 0.6 m/s2 Cengage Learning Testing, Powered by Cognero
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Chapter 02 - Motion POINTS: 1 QUESTION TYPE: Subjective Short Answer 92. A ball dropped from the top of a building hits the ground 9.0 s later. How high is the building (in meters)? ANSWER: 400 m (rounded to two significant figures) POINTS: 1 QUESTION TYPE: Objective Short Answer 93. On the Moon, what is the approximate value for the acceleration due to gravity? ANSWER: 1.6 m/s2 POINTS: 1 QUESTION TYPE: Subjective Short Answer 94. A stone is dropped from the top of a well that has water in it at a depth of 30.0 m. How long does it take the stone to reach the water? ANSWER: 2.5 s POINTS: 1 QUESTION TYPE: Objective Short Answer 95. A rock dropped down a well takes 1.8 s to hit the water. How far below the top of the well is the surface of the water? ANSWER: 16 m POINTS: 1 QUESTION TYPE: Objective Short Answer 96. What is the displacement of a hiker who travels 3.0 km east and then 4.0 km north? ANSWER: 5.0 km POINTS: 1 QUESTION TYPE: Objective Short Answer 97. An ant on a picnic table travels 30 cm eastward, then 15 cm northward, then 20 cm westward, and finally 15 cm southward. What is the magnitude of its net displacement? ANSWER: 10 cm POINTS: 1 QUESTION TYPE: Objective Short Answer
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