Final_Summer06

Final_Summer06 - Name: - S. I. D.: - Physics 220 Final Exam...

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Page 1 Name: ----------------------------------------------- S. I. D.: ------------------------------------ Physics 220 Final Exam (Version A) Summer 06 THIS EXAM CONTAINS 36 QUESTIONS. ANSWERS ARE ROUNDED. PICK THE BEST ANSWER TO EACH QUESTION. Each of the following questions (1 - 15) is worth 6 points 1. A vertical block-spring system on earth has a period of 6.0 s. What is the period of this same system on the moon where the acceleration due to gravity is roughly 1/6 that of earth? A) 1.0 s B) 2.4 s C) 6.0 s D) 15 s E) 36 s 2. Which one of the following statements is true concerning an object executing simple harmonic motion? A) Its velocity is never zero. B) Its acceleration is never zero. C) Its velocity and acceleration are simultaneously zero. D) Its velocity is zero when its acceleration is a maximum. E) Its maximum acceleration is equal to its maximum velocity. 3. The velocity of a certain simple harmonic oscillator is given by v = (12 m/s) sin [(6.0 rad/s) t ]. What is the amplitude of the simple harmonic motion? A) 2.0 m B) 4.0 m C) 6.0 m D) 8.0 m E) 12 m
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Page 2 4. Complete the following statement: Young's modulus cannot be applied to A) a stretched wire. B) a compressed rod. C) a bending beam. D) a compressed liquid. E) a stretched rubber band. 5. In a car lift, compressed air with a gauge pressure of 4.0 × 10 5 Pa is used to raise a piston with a circular cross-sectional area. If the radius of the piston is 0.17 m, what is the maximum mass that can be raised using this piston? A) 530 kg B) 3700 kg C) 9800 kg D) 22 000 kg E) 41 000 kg 6. Which one of the following statements concerning the buoyant force on an object submerged in a liquid is true? A) The buoyant force depends on the mass of the object. B) The buoyant force depends on the weight of the object. C) The buoyant force is independent of the density of the liquid. D) The buoyant force depends on the volume of the liquid displaced. E) The buoyant force will increase with depth if the liquid is incompressible. 7. Three thermometers are in the same water bath. After thermal equilibrium is established, it is found that the Celsius thermometer reads 100 °C, the Fahrenheit thermometer reads 212 °F, and the Kelvin thermometer reads 273 K. Which one of the following statements is the most reasonable conclusion? A) The Kelvin thermometer is incorrect. B) The Celsius thermometer is incorrect. C) The Fahrenheit thermometer is incorrect. D) All three thermometers are incorrect. E) The three thermometers are at different temperatures.
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Page 3 8. Which one of the following statements best explains why convection does not occur in solids? A) Molecules in a solid are more closely spaced than in a gas. B)
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Final_Summer06 - Name: - S. I. D.: - Physics 220 Final Exam...

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