Echos are made when sound waves hit against something. A sound wave is usually made by sound squeezing air molecules, forcing them to bounce against each other, thus; creating a wave-like pattern. Echos are usually made in partially enclosed (caved in) areas, such as an arena, because it captures more sound waves, instead of letting them spread out all over. It has a destination... YOU!
You hear an echo because the walls of the room are very hard surfaces. Sound waves bounce off of these surfaces and return to the source.
Echos occur when a sound wave reflects off of a surface. (haha at least that's better than what the original people put)
because when we shout in a hard or narrow room it offen make echo
I would expect to hear an echo in a gymnasium because if you think of a basketball bouncing just 1 you hear it coming right back at you.
Echo
When a sound wave is reflected, you hear an echo.
you can hear a echo in one particular direction because the direction you do it the waves bend back towards you
An echo
we hear an echo because its in our blood to hear things in a repeditive form but a lot quieter.
echo
echo turns into the echo we hear today.
an echo
dolpins hear through an echo
I would expect to hear an echo in a gymnasium because if you think of a basketball bouncing just 1 you hear it coming right back at you.
The gaps between the reflections are long when you hear an echo. When the reflections are very close together then you here no single echo, you hear many close reflections as a reverberation.
Echo
echo
When a sound wave is reflected, you hear an echo.
we hear an echo because its in our blood to hear things in a repeditive form but a lot quieter.
you can hear a echo in one particular direction because the direction you do it the waves bend back towards you