Question

B?

Answer 1

well... I mean, by definition, sounds are vibrations

Answer 2

oh that's too small to see
here: https://prnt.sc/j9qbcu

Answer 3

C

Answer 4

Yes, I think that's correct

but do you understand that sound doesn't transport any 'stuffs'?
like how waves look like they're moving but the water doesn't really go anywhere
https://prnt.sc/j9qccm

Answer 5

yes i understand , its just the waves that have movement the water stays the same right?

Answer 6

exactly

and sound is the same
sound moves in waves so the air vibrates but doesn't actually move a distance

Answer 7

Stuck between c and D

Answer 8

so pitch only changes when the *source* of the sound is moving toward or away from a listener. because of how the sound compresses on itself as new sound waves are being made

Answer 9

on the other hand
the intensity (or volume) of the sound gets smaller the farther away you get

as in, the farther away you are, the softer the sound

Answer 10

so intensity =)

Answer 11

yup!