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# Physics 7C SS1 Lecture 2: Wave Model

Physics 7C SS1 Lecture 2: Wave Model. 1D &amp; 2D Wave Review Phase Constant vs. Total Phase Introduction to Interference. `. Longitudinal vs. Transverse Wave Polarization. Longitudinal Wave. Transverse Wave. Wavefront Representation. Wavefront Representation.

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## Physics 7C SS1 Lecture 2: Wave Model

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1. Physics 7C SS1Lecture 2: Wave Model 1D & 2D Wave Review Phase Constant vs. Total Phase Introduction to Interference

2. ` Longitudinal vs. Transverse Wave Polarization Longitudinal Wave Transverse Wave

3. Wavefront Representation

4. Wavefront Representation How long is the marked distance? /2  T/2 T

5. Source vs. Medium • Consider: • Period • Wavelength • Frequency • Wave speed • Which can be changed if the source changes in some way? • Which can be changed if the medium changes in some way?

6. Source vs. Medium When I change the speed at which the machine moves, which of the following will change? • Frequency, period, wavelength, and wave speed all change • Frequency, period and wavelength • Frequency and wavelength • Wavelength and wave speed • Frequency and period

7. Waves review • Wave displacement depends on where AND when (x and t)! • What are we graphing anyway? Check out “longitudinal traveling wave” application; Link on web page!

8. Total Phase Which of the following includes only points with a total phase of exactly/2? • All • ABC • ADG • AEH • ACF

9. Total Phase Which of the following includes only points with a total phase equivalent to /2? • All • ABC • ADG • AEH • ACF

10. Fixed Phase Constant Which of the following lists only points with a fixed phase constant of exactly to/2? • All • ABC • ADG • AEH • ACF

11. Mathematical relationships & Model Tools: • Making sense of the wave equation: • Using Total Phase Charts:

12. Practice Quiz

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