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14. Waves

Section outline

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  Transverse and longitudinal waves
  
  Select activity Introduction to waves
  
  Introduction to waves Lesson
  
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  Select activity Production of sound
  
  Production of sound Lesson
  
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  Displacement relation in a progressive wave
  
  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 The equation of a wave
  
  The equation of a wave Lesson
  
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  The principle of superposition of waves
  
  Select activity Wave interference
  
  
  
  Wave interference Lesson
  
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  Select activity Constructive and destructive interference
  
  
  
  Constructive and destructive interference 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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  Reflection of waves
  
  Select activity Standing waves on strings
  
  
  
  Standing waves on strings Lesson
  
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  Select activity Standing waves in open tubes
  
  
  
  Standing waves in open tubes Lesson
  
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  Select activity Standing waves in closed tubes
  
  
  
  Standing waves in closed tubes Lesson
  
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  The speed of a travelling wave
  
  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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  Beats
  
  Select activity Beat frequency
  
  Beat frequency Lesson
  
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  Select activity Derivation of beat frequency formula
  
  Derivation of beat frequency formula Lesson
  
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