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Physics 7C SS1 Lecture 2: Wave ModelPowerPoint Presentation

Physics 7C SS1 Lecture 2: Wave Model

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### Physics 7C SS1Lecture 2: Wave Model

1D & 2D Wave Review

Phase Constant vs. Total Phase

Introduction to Interference

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?

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

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!

Total Phase

Which of the following includes only points with a total phase of exactly/2?

- All
- ABC
- ADG
- AEH
- ACF

Total Phase

Which of the following includes only points with a total phase equivalent to /2?

- All
- ABC
- ADG
- AEH
- ACF

Fixed Phase Constant

Which of the following lists only points with a fixed phase constant of exactly to/2?

- All
- ABC
- ADG
- AEH
- ACF

Mathematical relationships & Model Tools:

- Making sense of the wave equation:
- Using Total Phase Charts:

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