The Doppler Effect

In class, we have encountered a disturbance in the frequency of a wave that is called the Doppler

effect. like Antoni's "waawawawwaw" (bad ambulance noises) and like in the video Dr. G has showed us (here's the link:http://www.youtube.com/watch?v=MyTnx8GgDD0&feature=related). Basically what the Doopler Effect is, is that due to the movement of the source of sound, the wavelength is changed, and one can hear only a small part or a bit distorted part from the sound. In the vidowe that was given above, the Doopler Effect is prominent and is easily discovered. www.kettering.ed's definition fo the Doppler Effect is "THe sudden change in pitch of a car horn as a car passes by (source of motion) or in the pitch of a boom box on a sidewalk as you drive by in your car (observer motion) was first explained by Christian Doppler. His Doppler Effect is the shift in frequency and wavelength of waves which result from a source moving with respect to the medium, a reciever moving with respect to the medium, or even a moving medium."