Physics Final

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Author:
andreabyerly
ID:
56058
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Physics Final
Updated:
2010-12-14 21:12:39
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Physics Final
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Physics Final
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  1. Period variable
    T
  2. Frequency variable
    f
  3. Amplitude variable
    A
  4. Wavelength variable
    λ
  5. Wavelength definition
    the distance between any two successive parts of a wave
  6. Amplitude definition
    the magnitude of the maximum displacement, or the maximum distance, from the particles equilibrium position
  7. Frequency definition
    the number of waves per second that pass by a given point during each second
  8. Frequency formula
    f=1/T
  9. Period definition
    the time for one complete wavelength to pass by a given point
  10. Wave Speed formula
    v=λf
  11. Transverse wave:
    the disturbance occurs perpendicular to the direction of travel of the wave. Example: wave on a stretched string
  12. Longitudinal wave:
    the disturbance occurs parallel to the direction of travel of the wave. Example: sound
  13. Frequency range of the human ear:
    20 Hz to 20 kHz
  14. Principle of Superposition
    At any time, the combined waveform of two or more interfering waves is given by the sum of the displacements of the individual waves at each point in the medium
  15. Tube open at both ends:
    has displaced antinodes at both ends.

    L=n(1/2λn)
  16. Tube open at one end:
    • has displaced antinode at the open end
    • has displaced node at closed end

    L=m(1/4λm)
  17. Tube open at both ends:

    Fn=

    n=
    Fn= V/λn = n(v/2L) = nf1

    n= 1,2,3,...
  18. Tube open on one end:

    Fm =

    m=
    Fm = V/λm = m(V/4L) = mf1

    m= 1,3,5,...
  19. Intensity =
    Loudness
  20. Frequency =
    Pitch
  21. Harmonics =
    Quality
  22. β =
    10 log (I/I0)
  23. I0 =
    10-12 w/m2
  24. Doppler Effect Formula

    o=
    s=
    v=
    Fo = ((V±V0) / V∓V0)) fs

    • o= observer
    • s=source
    • v=speed of sound
  25. Doppler Effect: towards
    top signs
  26. Doppler Effect: away
    bottom signs

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