Physicis

• In what direction do the particles move relative to a transverse wave's direction, right angle
• A longitudinal wave causes the medium’s particles to vibrate in the same direction as the wave’s motion. Examples of longitudinal waves are sound waves and pushing a spring in and out.
• The frequency of a wave is the number of complete waves that pass a point per second. (The frequency of a wave is calculated by dividing 1 by the time period)

  
• The wavelength of a wave is the distance between two consecutive points on the same phase of the wave. For example, it could be the distance between two successive peaks or two successive troughs.
• amplitude is the maximum displacement of a wave from its undisturbed position, measured in metres

  
• In a transverse wave, what is the wavelength? The distance between two peaks of adjacent waves
• wave speed formula is frequency x wavelength (m/s)
• wave speed is the speed of the wave in a given medium, measured in metres per second. (the speed at wich energy is transfred)
• Wavefronts are the lines of constant displacement from the origin of a wave.
• The Doppler effect describes the phenomenon of the observed wavelength and frequency of waves changing when the source of the waves is moving with respect to an observer.
• Approaching vs receding sources

  • When the source of the waves is approaching, the frequency shifts upwards for observers.
  • When the source of the waves is receding, the frequency shifts downwards for observers.