The wave speed, v, is how fast the wave travels and is determined by the properties of the medium in which the wave is moving. Speed of a point on the wave, speed of the wave, velocity of the wave...The wave speed, v, is how fast the wave travels and is determined by the properties of the medium in which the wave is moving. Speed of a point on the wave, speed of the wave, velocity of the wave, bulk modulus (compressibility), Young's modulus (stiffness), speed of electromagnetic waves, speed of sound in different media, linear waves, v=λf, wave number, angular frequency, index of refraction.