This is a free preview. For full access
Waves and their Applications in Technologies for Information Transfer: Sound
Doppler Effect
Description
Doppler Effect
The Doppler Effect is a change in the pitch of a sound caused by the movement of the sound source. When the source moves toward the listener, the sound waves are compressed, and the pitch becomes higher. When it moves away, the waves are stretched, and the pitch becomes lower. Thi...
Show More
Transcript
Have you ever heard an ambulance pass by with its siren on?
As it approaches, the sound seems higher. But once it passes and moves away, the sound drops and becomes lower.
This change in pitch happens because of the Doppler effect. Pitch refers to how high or low a sound seems, and it depends on the sound’s frequency.
The Dopp...
Show More