basics

• Travelling waves V = f x λ, f = 1/T, λ = V/f

  -> transverse perpendicular to direction of wave travel (electromagnetic), crests and troughs points of max displacement

  
  

  ->longitudinal parallel to direction of wave travel (mechanical & seismic), crests points of max density, troughs point of min density
• high pitch -> high frequency -> shorter wavelength

  low pitch -> longer wavelength
• Displacement of the medium - how much the medium is moved vertically from resting position (displacement = 0)

  Distance between two corresponding points on the wave is called the wavelength

  
• T = 1/f
• V = f x λ
• V = d/t
• radians to degrees degrees to radians

  xrad x 180/π = x° or x° x 180/π = xrad
• Terms

  (angle also degrees °)

  
• Standard form - > 230,000,000 = 2.3 x 10$^8$

  
• f = v/λ