GCSE Physics (AQA)

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Longitudinal Waves

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Waves Waves in air, fluids and solids

Longitudinal Waves

2:27 Types of Wave
Spec 4.6.1.1
Previous Transverse Waves Next Wave Speed
  • Longitudinal waves have vibrations parallel to the direction of wave travel.
  • Sound waves are the most common type of longitudinal waves.
  • Longitudinal waves can be demonstrated by pushing a spring back and forth.
  • Kinetic energy is transferred from the hand along the spring.
  • The coils of the spring vibrate back and forth parallel to energy transfer, defining a longitudinal wave.
  • Transverse waves differ as they move perpendicular to energy transfer.
  • Compressions in a spring are points where matter is pushed together.
  • Rarefactions are points where matter is pulled apart.
  • The matter transporting the wave does not move along with it.
  • Coils gather at compressions and separate at rarefactions temporarily.
  • The spring returns to its original position once wave energy is transported.
  • The spring does not leave the hands after pushing and pulling.

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