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Lecture2

# Lecture2 - Physics7C Lecture2:MorewithWaves TodaysAgenda...

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Physics 7C Lecture 2: More with Waves

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Today’s Agenda Review Longitudinal vs. Transverse Wave Dimensionality Source vs. Medium Total Phase and the Wave Equation New Stuff Phase Charts The wavefront representation of 2D waves The wave equation in 2D Sound waves
Wave Polarization: Longitudinal vs.  Transverse Longitudinal Transverse

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Wave Dimensionality This is a ___ dimensional wave.
Wave Dimensionality The Bell Labs Wave Machine (the class wave demo) is an example of a ___ dimensional wave.

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Wave speed crest 1 crest 2 y x t = 0 crest 1 crest 2 t = T λ y x
Source vs. Medium Consider the following wave properties: Period Wave Speed Frequency Wavelength Amplitude Which of these things will change if the source changes in some way? Which of these things will change if the medium changes in some way?

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Source vs. Medium When I change the speed at which my hand moves, which of the following wave properties change?
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