Waves

Cards (19)

  • The two types of waves are the longitudinal and transverse waves.
  • The medium particles of a longitudinal wave vibrate parallel to the motion of the pulse.
  • Sound waves are longitudinal waves.
  • The two parts of longitudinal waves are Compression and Rarefaction.
  • Compression is where the particles are close together.
  • Rarefaction is where the particles are spread apart.
  • you can feel energy more in compression.
  • In a transverse wave, the pulse travels perpendicular to the disturbance.
  • Crest - positive or upward displacement
  • Trough - negative or lower displacement
  • The equillibrium represents the flat line or the undisturbed.
  • The dashed line is the equillibrium.
  • The distance of the wave from the equilibrium is called the amplitude.
  • The distance between two consecutive waves or the length of the wave pulse is called the wave length.
  • The wave frequency is the number of wavelengths that pass a fixed point each second.
  • When frequency increases, wavelength decreases.
  • There are two types of changing in wave direction and they are reflection and refraction.
  • Reflection is the bounce of wave.
  • Refraction is the speed change and the bending of light.