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Waves - Coggle Diagram

- - - - T = t / n
  - - - volt per meter [V/m] or newton per coulomb [N/C] for electric field
      - meter [m] for displacement
      - pascal [Pa] for pressure
  - - - f = n / t
    - - f = 1 / T
    - - [Hz = 1/s = s^-1]
  - - - the type of wave
      - the composition of the medium
      - the state of the medium
    - - v = ∆s / ∆t
    - - v = fλ
    - - Lower frequency waves have longer wavelengths.
      - Higher frequency waves have shorter wavelengths.
- - - - The disturbance is perpendicular to the direction of propagation
      - All electromagnetic waves are transverse
      - A crest is a point of maximal change in the positive direction
      - A trough is a point of maximal change in the negative direction
    - - The disturbance is parallel to the direction of propagation
      - Sound is a longitudinal wave.
      - A compression or condensation is a region where the medium is under compression
      - A rarefaction or dilation is a region where the medium is under tension
    - - Waves on water (deep water waves or tiny ripples) are complex waves.
      - A combination transverse-longitudinal wave that forms near the surface of some media
    - - Are significant in some large structures like bridges and skyscrapers
      - The disturbance causes the medium to twist.
  - - - appear to move
    - - do not appear to move
  - - - Sound is a mechanical wave
      - Matter is the medium
    - - Electric and magnetic fields are the media.
      - Light is an electromagnetic wave
      - Electromagnetic waves include, radio waves, microwaves, infrared, light, ultraviolet, x-rays, and gamma rays
    - - The gravitational field is the medium
    - - The quantum mechanical description of fundamental particles like electrons and quarks as a wave