College Physics A Strategic Approach, 4th edition BY Randall D Knight
Email: richard@qwconsultancy.com
College Physics: A Strategic Approach, 4e (Knight) Chapter 1 Representing Motion 1.1 Conceptual Questions 1) In the product A ∙ B ∙ C, A has 5 significant figures, B has 2 significant figures, and C has 3 significant figures. How many significant figures does the product have? A) 2 B) 3 C) 4 D) 5 E) 10 Answer: A Var: 1 2) In the quotient
, A has 5 significant figures, B has 2 significant figures, and C has 3
significant figures. How many significant figures does the quotient have? A) 2 B) 3 C) 4 D) 0 E) 1 Answer: A Var: 1 3) In the sum A + B + C, A is accurate to 5 decimal places, B is accurate to 2 decimal places, and C is accurate to 3 decimal places. What is the correct number of decimal places in the sum? A) 2 B) 3 C) 4 D) 5 E) 10 Answer: A Var: 1 4) In the difference A - B - C, A is accurate to 5 decimal places, B is accurate to 2 decimal places, and C is accurate to 3 decimal places. What is the correct number of decimal places in the difference? A) 2 B) 3 C) 4 D) 5 E) 0 Answer: A Var: 1 1 .
5) How many significant figures are in the number 0.0037010? A) four B) five C) six D) seven E) eight Answer: B Var: 1 6) How many significant figures are in the number 0.010? A) four B) three C) two D) one Answer: C Var: 1 7) How many significant figures are in the number 120.070? A) six B) five C) four D) three Answer: A Var: 1 8) The number of significant figures in 10001 is A) two. B) three. C) five. D) six. Answer: C Var: 6 9) The number of significant figures in 0.01500 is A) two. B) three. C) four. D) five. Answer: C Var: 5
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10) The number of significant figures in 0.040 is A) one. B) two. C) three. D) four. Answer: B Var: 6 11) Which of the following numbers has 4 significant figures; which has 5 significant figures? (a) 3001 (b) 0.00370 (c) 4774.00 (d) 29.290 Answer: (a) has 4 significant figures; (d) has 5 significant figures Var: 1 12) In a parallel universe, the quantity π has the value 3.14049… . Express π in that universe to (a) four significant figures (b) five significant figures. Answer: (a) 3.140 (b) 3.1405 Var: 1 13) The metric system is preferred over the British system in science for the following main reason. A) The metric system is more precise than the British system. B) Metric quantities can be defined more accurately than the quantities in the British system. C) Metric quantities are natural whereas British quantities are invented. D) Conversions between metric quantities are especially easy because they are all related by factors of ten. Answer: D Var: 1 14) A reasonable estimate for the mass of a typical female college student is A) 20 kg. B) 50 kg. C) 150 kg. D) 200 kg. Answer: B Var: 1 15) A reasonable estimate for the height of an ordinary adult male is A) 50 cm. B) 70 cm. C) 200 cm. D) 300 cm. Answer: C Var: 1 3 .
16) A reasonable estimate for the mass of a typical new-born baby is A) 1 kg. B) 3 kg. C) 10 kg. D) 20 kg. Answer: B Var: 1 17) A reasonable estimate for the height of the walls in an ordinary American home is A) 10 m. B) 8 m. C) 2.5 m. D) 1.5 m. Answer: C Var: 1 18) A reasonable estimate for the duration of a typical physics lecture is A) 600 s. B) 1000 s. C) 3500 s. D) 10,000 s. Answer: C Var: 1 19) A reasonable estimate for the mass of an ordinary passenger car is A) 100 kg B) 1000 kg C) 5000 kg D) 10,000 kg Answer: B Var: 1
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