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What is the Doppler effect on sound?
The Doppler effect is a phenomenon observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for the observer and the source are approaching and an apparent downward shift in frequency when the observer and the source is receding. The Doppler effect can be observed to occur with all types of waves - most notably water waves, sound waves, and light waves.
What increases as loudness of a sound increases?
A) wavelength B) frequency C) velocity D) amplitude
After an approaching ambulance passes a stationary observer what does the frequency of the sound of the siren heard by the observer appear to do?
Soften... It is lower due to the Doppler effect. Decrease =]
Who discovered the red shift in stars the same effect that causes sound waves to change pitch as an object moves towards or away from an observer?
Doppler.
What sound waves do?
Sound waves carry sound
Does sound produce waves?
Yes sound does produce waves. These special waves are called sound waves.
Sound waves are examples of what?
sound waves are a example of mechanical waves
Is it possible to move a source of sound relative to a stationary observer so that there is no shift in the frequency of the sound?
For the sound from a source not to be shift in frequency , the radial velocity of the source to the observer must be zero : that is the source must not be moving towards or away from the observer
Does a soft sound have tall waves?
No, soft sound waves have short waves. Loud sound waves are the ones that have tall waves.
Why are sound waves are described as pressure waves?
Sound waves are described as pressure waves because waves produces pressure by which sound is produces
What does sound travel on?
Waves; sound waves.
Bats can sense obstacles because they produce 1. supersonic sound waves 2. ultrasonic sound waves 3.infrasonic sound waves 4. micro Sound waves?
ultrasonic sound waves
