In a previous entry, the velocity of a sound-emitting source ( vs ) and a moving receptor of sound ( vr ) were related to the frequency of the sound emitted by the source ( fs ) and the frequency at which the receptor interpreted the emitted sound ( fr ) as follows: ( frContinue reading “SOUND: Calculating the Speed of an Approaching Target”
Tag Archives: 332 m/s
SOUND: The Doppler Effect
Sound is a quantification of the rate at which pressure waves pass through a “ springy “ gas medium such as air. A complete wave cycle is inclusive of regions of high and low pressure created by a vibrating source of sound. If we consider a circumstance in which a stationary source of sound isContinue reading “SOUND: The Doppler Effect”
SOUND: Beat Phenomena in Acoustics
Two major considerations will help us develop a clear understanding of an acoustic phenomena called ” sound beats “. First, consider that a longitudinal sound wave is a pressure wave moving through a ” springy ” medium. The Bulk Modulus and temperature of the medium influence the velocity of sound waves. Of interest here, however,Continue reading “SOUND: Beat Phenomena in Acoustics”
SOUND: Open-Pipe Systems
A standing pressure wave can be established by sound waves within a pipe with both ends open as well as pipes with one closed end. When a single-standing pressure wave exists within a pipe, the frequency ( f ) of the sound emitted is regarded as being the first or ” fundamental ” sound frequencyContinue reading “SOUND: Open-Pipe Systems”
RENAISSANCE PHYSICS 