1 / 14

SMDEP Physics

Check your wave and superposition knowledge! Measure your improvement with pre- and post-quiz results. Dive into standing waves and relevant physics concepts. Webpage updated with quiz details, frequency questions, and wave motion explanations.

johnnyb
Download Presentation

SMDEP Physics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SMDEP Physics Waves, Superposition, Standing Waves Webpage updated: http://www.astro.yale.edu/krines/smdep

  2. Quiz Results • Pre-quiz and Post-quiz to measure change • Pre-quiz mean: 8.6 (max:24) • Post-quiz mean: 15.7 (max:29) • This change is larger than most semester-long, lecture-based courses • You all did it in 11 days! • Office Hours M, Tu 5-7 pm • Answer sheets available, blank quiz for inspection

  3. 0 of 5 10 Ch 15, #31(a): ratio v2/v1 of speeds of waves • (m1/m2)1/2 • (m2/m1)1/2 • m2/m1 • m1/m2 • Other • Didn’t finish

  4. 0 of 5 10 Ch 15, #31(b): ratio of wavelengths (string 2 to string 1) • (m1/m2)1/2 • (m2/m1)1/2 • m2/m1 • m1/m2 • Other • Didn’t finish

  5. 10 0 of 5 Ch 15, #36: violin frequency? • 294 Hz • 74 Hz • 221 Hz • 392 Hz • Other • Didn’t finish

  6. 0 of 5 10 Ch 15, #44 abc: mass for 1/2/5 loops? • (1.38, 0.35, 0.055) kg • (2.76, 0.7, 0.1) kg • (0.38, 0.09, 0.011) kg • (1.38, 5.5, 35) kg • Other • Didn’t finish

  7. 10 0 of 70 Consider a wave, described by y=ymsin(kx+t). What is the motion of a particular location (a particular x value) along the string? • Back and forth in the +/- x direction • Back and forth in the +/- y direction • Back and forth in the +/- z direction • Cannot tell without more information

  8. 10 0 of 70 Consider the same wave, described by y=ymsin(kx+t). What is the shape of the wave? • Sine function • Sine function plus linear term • Cannot tell without more information

  9. 10 0 of 70 Consider the same wave, described by y=ymsin(kx+t). What is the velocity of propagation of the wave? • /k • k/ • dym/dt • Cannot tell without knowing the properties of the string

  10. 10 0 of 70 Consider the same wave, described by y=ymsin(kx+t). What direction is the wave traveling? • In the +x direction • In the –x direction • In the +y direction • In the –y direction • Cannot tell without knowing the properties of the string

  11. 10 0 of 70 Consider the sum of two identical waves (same amplitude, wavelength, frequency, phase, propagation direction). What is the amplitude of the sum? • Same as either wave • Twice the amplitude of either wave • Half the amplitude of either wave • Zero • None of the above

  12. 10 0 of 70 Consider the sum of two similar waves (same amplitude, wavelength, frequency, propagation direction), but with phase different by p radians. What is the amplitude of the sum? • Same as either wave • Twice the amplitude of either wave • Half the amplitude of either wave • Zero • None of the above

  13. 10 0 of 70 Consider the sum of two similar waves (same amplitude, wavelength, frequency, propagation direction), but with phase different by 2p radians. What is the amplitude of the sum? • Same as either wave • Twice the amplitude of either wave • Half the amplitude of either wave • Zero • None of the above

  14. 10 0 of 70 Consider the sum of two similar waves (same amplitude, wavelength, frequency, propagation direction), but with phase different by p/2 radians. What is the amplitude of the sum? • Same as either wave • Twice the amplitude of either wave • Half the amplitude of either wave • Zero • None of the above

More Related