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8. Sound

Section outline

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  Common Properties of all Waves
  
  Select activity Amplitude, period, frequency and wavelength of periodic waves
  
  
  
  Amplitude, period, frequency and wavelength of periodic waves Lesson
  
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  Select activity Sound properties (amplitude, period, frequency, wavelength)
  
  
  
  Sound properties (amplitude, period, frequency, wavelength) Lesson
  
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  Select activity Example: frequency and amplitude from graphs
  
  
  
  Example: frequency and amplitude from graphs Lesson
  
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  Transverse Waves and Longitudinal Waves
  
  Select activity Introduction to waves
  
  Introduction to waves Lesson
  
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  Mathematical Expression of a Wave
  
  Select activity The equation of a wave
  
  The equation of a wave Lesson
  
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  The Speed of Travelling Waves
  
  Select activity Speed of sound
  
  Speed of sound Lesson
  
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  Select activity Relative speed of sound in solids, liquids, and gases
  
  Relative speed of sound in solids, liquids, and gases Lesson
  
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  Echo, reverberation and acoustics
  
  Select activity Echoes and reverberations
  
  
  
  Echoes and reverberations Lesson
  
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  Select activity Production of sound
  
  
  
  Production of sound Lesson
  
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  Select activity Echolocation & S.O.N.A.R
  
  
  
  Echolocation & S.O.N.A.R Lesson
  
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  Select activity Ultrasound medical imaging
  
  
  
  Ultrasound medical imaging Lesson
  
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  Doppler effect
  
  Select activity Introduction to the doppler effect
  
  
  
  Introduction to the doppler effect Lesson
  
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  Select activity Doppler effect formula for observed frequency
  
  
  
  Doppler effect formula for observed frequency Lesson
  
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  Select activity Doppler effect formula when source is moving away
  
  
  
  Doppler effect formula when source is moving away Lesson
  
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  Select activity When the source and the wave move at the same velocity
  
  
  
  When the source and the wave move at the same velocity Lesson
  
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  Select activity Doppler effect for a moving observer
  
  
  
  Doppler effect for a moving observer Lesson
  
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  Select activity Doppler effect: reflection off a moving object
  
  
  
  Doppler effect: reflection off a moving object Lesson
  
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