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Properties of Waves. Pgs 10 - 13. Amplitude. The property of a wave that is related to the height of a wave is amplitude. The maximum distance the wave vibrates from rest position. The rest position is where the particles stay when there are no disturbances. . Amplitude and Energy.

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amplitude
Amplitude
  • The property of a wave that is related to the height of a wave is amplitude.
  • The maximum distance the wave vibrates from rest position.
  • The rest position is where the particles stay when there are no disturbances.
amplitude and energy
Amplitude and Energy
  • Larger amplitude means more energy is used to make that wave.
  • A smaller amplitude means less energy is used to make that wave.
  • Amplitude can be a measure of energy in a wave.
wavelength
Wavelength
  • The distance between any two adjacent crests or compressions in a series of waves is the wavelength.
  • The wavelength can be measured from troughs and rarefactions as well.
frequency
Frequency
  • The number of waves produced in a given amount of time is frequency.
  • You can count the number of crests/troughs/compressions/rarefactions that occur.
  • Frequency is expressed in Hertz (Hz).
  • 1 Hz = 1 wave /second.
frequency and energy
Frequency and Energy
  • The higher the frequency a wave has, the more energy the wave is carrying.
  • Also, the wavelength is closely related to frequency.
  • Therefore, the shorter the wavelength a wave has, the more energy it is carrying and vice versa.
wave speed
Wave Speed
  • The speed at which a wave travels is wave speed.
  • This is the distance traveled divided by the time it takes to travel.
  • Sound in air travels at 340m/s .
  • Sound in steel travels 5200m/s.
calculating wave speed
Calculating Wave Speed
  • Wave speed is calculated by using wavelength and frequency.
  • Speed is symbolized with a (v)
  • Wavelength is symbolized with a (λ)
  • Frequency is symbolized with a (f)
  • V = λ x f
  • What is the wave speed of a wave that has a wavelength of .5 m and frequency of 3 Hz?
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