pq11ans - Which can affect the period of oscillation? A....

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PHYS-1200 PHYSICS II SPRING 2005 Post Quiz 11 Name___________ ANSWERS _________________ For questions 1 and 2, write the letter corresponding to the best answer to the question in the space provided to the left of the question number. _C _ 1. If you decide to use a sine function instead of a cosine function to describe the oscillation of a mass on a spring, which of the following parameters would you change? A. the angular frequency, ϖ B. the amplitude, x m C. the phase constant, φ D. the zero offset E. a sine function cannot be used to describe a mass on a spring _B _ 2. A mass on a spring undergoes simple harmonic motion. Consider the following quantities. I. the amplitude of oscillation, x m II. the spring constant, k III. the phase constant,
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Unformatted text preview: Which can affect the period of oscillation? A. Only I D. Only I and III B. Only II E. I, II, and III C. Only III 3. A model for data from a mass-spring system arrives at the following expression: x = (0.47 m) cos[(0.16 rad/s) t + 0.23 rad]+ 2.0 m a) What is the maximum value of x for this oscillation? The maximum value of x is not the same as the amplitude. x max = 0.47 m + 2.0 m x max = 2.47 m units b) What is the minimum value of x for this oscillation? x min = 0.47 m + 2.0 m x min = 1.53 m units c) What is the angular frequency of this oscillation? = 0.16 rad/s units d) What is the period of this oscillation? T = 2 / = 2 / (0.16 rad/s) T = 39 s units...
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