WaveIntro

WaveIntro - Ch15. Mechanical Waves Liu UCD Phy9B 07 1 15-1....

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Liu UCD Phy9B 07 1 Ch15. Mechanical Waves
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Liu UCD Phy9B 07 2 15-1. Introduction Source: disturbance + cohesive force between adjacent pieces A wave is a disturbance that propagates through space Mechanical wave: needs a medium to propagate Wave pulse
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Liu UCD Phy9B 07 3 Distinctions Wave velocity vs. particle velocity Wave can travel & Medium has only limited motion Waves are moving oscillations not carrying matter along What do they carry/transport? Disturbance & Energy
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Liu UCD Phy9B 07 4 Types of Waves Transverse wave Longitudinal wave
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Liu UCD Phy9B 07 5 More Examples Transverse Longitudinal Transverse + Longitudinal
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Liu UCD Phy9B 07 6 Sound Wave: Longitudinal
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Liu UCD Phy9B 07 7 15-2. Periodic Waves
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Liu UCD Phy9B 07 8 Continuous / Periodic Wave Caused by continuous/periodic disturbance: oscillations Characteristics of a single-frequency continuous wave Crest / peak Trough Wavelength: distance between two successive crests or any two successive identical points on the wave Frequency f : # of complete cycles that pass a given point per unit time Period T :1 / f
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Liu UCD Phy9B 07 9 Wave Velocity v= λ /T = f Different from particle velocity
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This note was uploaded on 02/17/2009 for the course PHY na taught by Professor Richardscalettar during the Spring '09 term at UC Davis.

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WaveIntro - Ch15. Mechanical Waves Liu UCD Phy9B 07 1 15-1....

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