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Sound is a vibration of molecules that can travel through the air. It bounces off solid objects, so that the sound returns to its source in the form of an echo. The echo is weaker than the original sound because the vibration travels in many directions, not just to the object that it bounces off of, so energy is lost that way, and more energy is lost by means of other inefficiencies in the system; even at the moment of reflection, some energy is absorbed into the same object which reflects the sound.
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Why is an echo weaker than original sound?
You hear the echo as if from a longer distance; the sound energy gets dispersed over a larger area. Part of the energy will also be absorbed in the wall or whatever reflects the sound.
What kind of wave is an echo?
An echo of a wave is exactly the same type of wave as the original wave. An echo is simply the original wave returning to the observer, so if you made a sound (a longitudinal wave of vibrating air molecules), the echo is also sound waves.
When you hear an echo you are hearing a of the original sound wave.?
It is a reflection.
Why is the intensity of an echo less than that of the original sound?
Because the sound must lose energy on its way back from the reflector.
When you hear an echo you are hearing a of the original sound wave?
The echo thaat you really hear isnt the same sound wave, it is really a small man standing behind you repeating what you just said
Why is an echo weaker than original sound?
You hear the echo as if from a longer distance; the sound energy gets dispersed over a larger area. Part of the energy will also be absorbed in the wall or whatever reflects the sound.
What kind of wave is an echo?
An echo of a wave is exactly the same type of wave as the original wave. An echo is simply the original wave returning to the observer, so if you made a sound (a longitudinal wave of vibrating air molecules), the echo is also sound waves.
Does an echo have the same pitch as an original sound?
no its deeper
When you hear an echo you are hearing a of the original sound wave.?
It is a reflection.
What kind of math do sound technician use?
They can use formulas that are based on how sound grows weaker over the distance it travels and how the sound will echo off of walls.
Describe ways that echoes are used in measurement?
The speed of sound is the distance travelled by the sound waves in the time between the original sound and the echo. For a direct echo, the distance travelled is double the distance to the reflecting surface.
Why is the intensity of an echo less than that of the original sound?
Because the sound must lose energy on its way back from the reflector.
When you hear an echo you are hearing a of the original sound wave?
The echo thaat you really hear isnt the same sound wave, it is really a small man standing behind you repeating what you just said
Why do you can hear distant sound clearly?
sound is reflected when it strikes at any medium. a distant sound becomes clear if echo or reverbation takes place. an echo happens when one hears the reflection of the original sound 0.1 seconds later. and reverbation is multiple echo, which one can hear in sikandra at agra in india
What reflected sound is called?
reflected sound is either reverberation or echo
What is a sound wave that reflects off a hard surface?
An Echo-echo-echo-echo! The answer is Echo
Why can you not hear the echo if you stand 20 meter away and shout towards it?
You are too close to the surface from which the sound waves are reflected. As a result you brain cannot distinguish between the original sound waves and the reflexted sound waves (the echo).
