The velocity of a wave is calculated as the multiplication of wavelength and frequency. One method for describing the motion of an object is through the use of velocity-time graphs which show the velocity of the object as a function of time. If youre seeing this message it means were having trouble loading external resources on our website.
From the distance graph the wavelength may be determined.
Speed of sound of air at 20C is c 343 ms. Waves may be graphed as a function of time or distance. Determining wave frequency from a graph 2. In equation form If the crest of an ocean wave moves a distance of 20 meters in 10 seconds then the speed of the ocean wave is 20 ms.