GCSE Physics (AQA)

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Transmission & Wave Speed

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Waves Waves in air, fluids and solids

Transmission & Wave Speed

4:49 Transmission, Reflection and Absorption
Spec 4.6.1.2 4.6.1.3
Previous Waves & Boundaries Next Angle of Incidence & Reflection
  • Water wave transmission can be demonstrated using a ripple tank.
  • A wooden plank can be used to create water waves by disturbing the water's surface.
  • Waves can be analyzed by observing shadows created by a light above the tank.
  • The tank can be divided into sections with different water depths to study wave behavior.
  • Transmission occurs when a wave passes from one medium to another, such as from deep to shallow water.
  • Waves in shallow water have a shorter wavelength compared to those in deep water.
  • Frequency of water waves remains constant across different media.
  • Wave speed in shallow water is slower due to shorter wavelength but same frequency.
  • Transmission changes wavelength and speed but not frequency.
  • Similar effects occur with light and sound waves at boundaries between different media.
  • Light waves slow down and decrease in wavelength when moving from air to glass.
  • Sound waves also experience decreased wavelength but unchanged frequency during transmission.
  • Understanding these concepts is important for exams, especially for sound waves.

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