Properties of waves
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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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Properties of Waves

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Properties of waves

Properties of Waves

Pgs 10 - 13


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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