Question

You are exploring in a cave and call out to one of your friends. You hear your echo. Which interaction of sound, (reflection, refraction or absorption), caused the echo and how did the sound waves move?

Answer 1

@mathmale @mathmate @pooja195 @satellite73 @Loser66 @jigglypuff314 @jagr2713

Answer 2

@Zale101 @SolomonZelman

Answer 3

The sound waves will get smaller is you turn down the volume, and the sound waves will get bigger if the volume is turned up.

Answer 4

The resulting pitch would be low because the frequency is low.