2007-02-27 08:38:44 · 4 answers · asked by mendal 1 in Science & Mathematics ➔ Other - Science
An echo is soundwaves bouncing off an object and then being heard by you after you heard the original sound. It happens with every sound which hits something but it is only with loud sounds that most people hear them. This process is how dolphins and bats navigate in murky water and the dark. It is also used by submarines to navigate (SONAR) and by fishermen to find shoals of fish.
2007-02-27 08:43:54 · answer #1 · answered by Nick W 3 · 1⤊ 0⤋
It's exactly as Nick W said, except echoes form from every sound, not just loud ones. It's just that we can only hear loud echoes.
2007-02-27 08:59:53 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It is a sound reflection. Imagine throwing a rubber ball against a wall. The outward jouney is the sound, the bounce back is the echo.
2007-02-27 08:42:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
the sound waves bounce off of something and get back to you so you can hear them again
2007-02-27 09:44:34 · answer #4 · answered by MLBfreek35 5 · 0⤊ 0⤋