Waves

• Longitudinal waves - The oscillations are parallel to the direction of energy transfer
• Transverse wave - The oscillations are perpendicular to the direction of energy transfer
• Energy can't travel through particles, so it travels through waves
• Amplitude is the maximum displacement of a point from its undisturbed position measured in metres
• Wavelength is the distance of a point from its undisturbed position

  
• Amplitude is the maximum displacement of a point from its undisturbed position measured in metres

  
• Peak is the highest point above the undisturbed position

  Trough is the lowest point below the undisturbed position

  
• Compressions are areas of low pressure due to particles being pushed close together

  Rare fraction are areas where particles are spread out further apart