Waves Project

AB
by Anavay Bueno5 views·Updated Mar 31, 2021
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  1. waves project.
  2. Yeah, characteristics of a wave frequency is the amount of
  3. waves that pass through a certain point over specific amount
  4. of time.
  5. Aptitude is the distance between the equilibrium and the crest
  6. of a wave, or the trough of a wave.
  7. Wavelength is the horizontal distance between two similar waves, like
  8. the tropical wave and the crest of a wave.
  9. The relationship between frequency and amplitude is that they are
  10. independent of each other.
  11. The relationship between frequency and wavelength is at the lower
  12. the frequency, the longer the wavelength and the higher the
  13. frequency, the shorter the wavelength.
  14. About my device, I chose noise canceling headphones.
  15. This device blocks out all the external noise so that
  16. you only hear what you're playing.
  17. Here's how they work.
  18. A tiny microphone and headphones listens to the external sounds
  19. and sends them to the noise cancelling system.
  20. The noise canceling system process it and sends an opposite
  21. sound of the sound wave.
  22. So when the sound waves finally collide, it causes silence.
  23. Mm hmm.
  24. In the first chart, it shows how the whole system
  25. works. The noise cancelling system sends a sound wave that
  26. blocks out the external sound wave The second chart shows
  27. how the sound waves great silence.
  28. The first wave would be the external sound, and the
  29. second wave would be the sound wave coming from the
  30. noise cancelling system.
  31. The second sound wave is delayed one half wavelength in
  32. order to match the press with the troughs.
  33. Think of it like adding one and subtracting one.
  34. You're left with zero or in this case, no noise.
  35. Yeah, yeah.
  36. Okay. Yeah, Like I was saying before the microphone plays
  37. a big part in the active noise cancelling system.
  38. Active noise cancelling is when the microphone is actively listening
  39. for unwanted sounds.
  40. The microphone sends a full report of the waves, frequency
  41. and amplitude so that the active noise cancelling system knows
  42. exactly what to send back in order to cancel it.
  43. Wavelength plays a part, too.
  44. The active noise cancelling system delays the sound wave by
  45. one half wavelength so that the troughs match up with
  46. the crest.
  47. The type of wave noise canceling headphones function by listening
  48. and sending sound waves.
  49. By studying the treads above, I can tell you that
  50. sound waves are a type of longitudinal wave.
  51. I know it's a longitudinal wave because the vibration travels
  52. parallel to the direction of the sound waves.
  53. This is just my research explaining how the noise canceling
  54. headphones is working in deep in detail.
  55. Lastly, my bibliography.