wave equation

• What are the three important properties of waves discussed?

  Amplitude, wavelength, and frequency
• What is the definition of amplitude?

  Farthest point the wave vibrates from undisturbed position
• How is wavelength defined?

  Distance from one wave point to equivalent point on adjacent wave
• What does frequency measure?

  Number of waves passing a point each second
• What is the unit of frequency?

  Hertz
• What is the relationship between wave speed, frequency, and wavelength?

  Wave speed equals frequency multiplied by wavelength
• Is the wave speed equation provided in the exam?

  No, you need to learn it
• How do you calculate wave speed using frequency and wavelength?

  Multiply frequency by wavelength
• How do you convert 2 centimeters to meters?

  Divide by 100
• What is a method to measure the speed of sound waves in air?

  • Two people separated by 500 meters
  • Person A clashing cymbals
  • Person B timing from seeing clash to hearing sound
  • Calculate speed: distance / time
• What are the problems with measuring sound speed using the cymbals method?

  Reaction time and short sound delay
• Why is increasing the distance between observers helpful?

  It increases the time for accurate timing
• What is the formula for wave speed?

  • Wave speed (m/s) = Frequency (Hz) × Wavelength (m)