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What do you call a sound that bouces back to you?
An echo is a sound that bounces back to you after reflecting off a surface.
What are two factors that can affect the clarity of an echo?
The distance between the sound source and the reflecting surface can affect the clarity of an echo. The presence of obstacles or sound-absorbing materials near the reflecting surface can also impact the clarity of an echo.
What is a sound reflecting off a surface or other material?
When a sound wave hits a surface, it may bounce back rather than pass through it. This bouncing of sound waves off a surface is called sound reflection. The angle at which the sound wave hits the surface affects how it reflects.
Why is an echo not heard if the source of sound is very close the reflecting surface?
If the source of sound is very close to the reflecting surface, the time it takes for the sound to travel to the surface and back is too short for our ears to perceive it as an echo. This is because the brain is unable to distinguish between the original sound and the reflected sound arriving almost simultaneously.
How long does a sound take to come back as an echo?
The time it takes for a sound to come back as an echo depends on the distance between the sound source and the reflecting surface. Sound travels at a speed of approximately 343 meters per second in air, so you can roughly calculate the time by dividing the total distance the sound travels (to the reflecting surface and back) by the speed of sound.
What do you call a sound that bouces back to you?
An echo is a sound that bounces back to you after reflecting off a surface.
What are two factors that can affect the clarity of an echo?
The distance between the sound source and the reflecting surface can affect the clarity of an echo. The presence of obstacles or sound-absorbing materials near the reflecting surface can also impact the clarity of an echo.
What is the meaning of reflector?
One who, or that which, reflects., Something having a polished surface for reflecting light or heat, as a mirror, a speculum, etc., A reflecting telescope., A device for reflecting sound.
What is a sound reflecting off a surface or other material?
When a sound wave hits a surface, it may bounce back rather than pass through it. This bouncing of sound waves off a surface is called sound reflection. The angle at which the sound wave hits the surface affects how it reflects.
What are the condition required for occurrence an echo?
A true echo is one in which the source of sound is located in close vicinity to the receiver. You will requirea pulse of sound,a reflecting surface which is more than 17.2 metres from the sound source,the reflecting surface must be sufficiently smooth and at right angles to the direction of travel of the sound waves.
What kind a surface is the best reflector of sound?
The best reflector for sound will be massive, rigid, and with a smooth surface.
Why is an echo not heard if the source of sound is very close the reflecting surface?
If the source of sound is very close to the reflecting surface, the time it takes for the sound to travel to the surface and back is too short for our ears to perceive it as an echo. This is because the brain is unable to distinguish between the original sound and the reflected sound arriving almost simultaneously.
What locations can a person hear the echo of a sound?
the answer is c. at least 16.6 meters in front of the reflecting surface!
How long does a sound take to come back as an echo?
The time it takes for a sound to come back as an echo depends on the distance between the sound source and the reflecting surface. Sound travels at a speed of approximately 343 meters per second in air, so you can roughly calculate the time by dividing the total distance the sound travels (to the reflecting surface and back) by the speed of sound.
Why is echo heard after 0.1 seconds?
An echo is heard after a delay because sound waves take time to travel to a reflecting surface and back to the listener. The speed of sound in air is approximately 343 meters per second. Therefore, if the reflecting surface is about 17 meters away, the sound will take roughly 0.1 seconds to travel to the surface and return, resulting in the listener hearing an echo after that time.
What are the conditions necessary to hear echo?
The reflecting surface must be sufficiently smooth and shaped such that the sound is reflect back and not dispersed. Sound travels at approx 340 metres per second and the average human brain easily can distinguish sounds that are 1/2 second apart. That means the sound must travel at least 170 metres so that the reflecting surface must be half that distance away. While a greater distance will create a more distinctive echo, the strength of the returning sound fall off rapidly (at twice the square of the distance to the reflecting surface). In normal circumstances 170 metres (= approx 500 feet) is a good distance. A cave or convex reflecting surface will allow a greater distance.
What happens when sound bounces from a rough surface?
When sound bounces off a rough surface, it can scatter in many different directions due to the irregularities on the surface. This can result in sound waves reflecting in a more diffuse manner compared to when they bounce off a smooth surface, leading to decreased clarity and potentially producing echoes or reverberation.
