Echoes Flashcards
1
Q
we hear echoes in sports hall but not classrooms. why?
A
1.a sports hall is bigger, so there can be a delay.
2.nothing in the way of sound waves.
2
Q
what is reverberation?
A
if lots of echoes join together they produce a longer sound.
3
Q
how can you remove echoes in a room?
A
1.using sound proof walls
2.using sound proof ceilings.
4
Q
how can you calculate the speed of an echo?
A
distance divided by time
5
Q
how can you calculate the distance of an echo?
A
speed x time
