GCSE Combined Science (AQA)

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Wave Diagrams & Amplitude

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Waves Waves in air, fluids and solids

Wave Diagrams & Amplitude

5:14 Properties of Waves
Spec 4.6.1.2
Previous Concentration, Pressure & Rate Next Wavelength
  • A diagram can illustrate the shape of a transverse wave at a specific time.
  • Transverse waves travel with matter vibrating up and down, perpendicular to energy transfer.
  • Diagrams show the positions of matter at a certain point in time.
  • The equilibrium line represents the position of matter before wave disturbances.
  • Displacement measures how much matter has been displaced from the equilibrium line.
  • Amplitude is the maximum distance a point on the wave can be from its undisturbed position.
  • Peaks are points of maximum distance above the equilibrium line.
  • Troughs are points of maximum distance below the equilibrium line.
  • Amplitude is usually consistent throughout a wave but can decrease in some cases.
  • At GCSE level, focus is on transverse waves and their diagrams.
  • Peaks and troughs can be identified even if amplitude changes.
  • Understanding diagrams and definitions is crucial for wave analysis.
  • In real-world examples, such as ocean waves, key points and distances can be identified.
  • Ocean waves are transverse waves with water moving up and down as energy travels along the surface.
  • The equilibrium line in ocean waves represents the undisturbed water level.
  • Displacement and amplitude can be measured by the distance from the equilibrium line.
  • Peaks and troughs in ocean waves are where the water is at its highest or lowest points.

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