Wave equation

• Wave speed

  The speed at which the wave moves through the medium, the speed at which energy is transferred
• Calculating wave speed

  Frequency in Hertz multiplied by wavelength in meters
• The wave speed equation is not given in the exam, so it needs to be learned
• Calculating wavelength

  Wave speed divided by frequency
• Measuring speed of sound waves in air

  1. Person A clashes cymbals, Person B times from seeing to hearing

  2. Reduce error by having multiple observers and taking mean

  3. Increase distance to make timing easier
• The wave equation and determining speed of sound waves will be tested in the exam