Question

Q1: How are sound waves produced?


when a vibrating material sends a disturbance through a medium

when a sound is reflected off an object and through a medium

when a vibration compresses so much that it makes a wave

when the temperature of a medium changes such that vibrations are created

Q2:Sound waves travel the fastest through which of the following?


cold gas

hot gas

hot vacuum

cold vacuum

Q3:
The speed of sound is 331 meters per second, but the speed can change depending on the medium the sound is traveling through.

True
False

Answer 1

i have to post the rest after

Answer 2

One by one please.

Answer 3

lol ok

Answer 4

the first one is A.

Answer 5

2nd-hot gas.

Answer 6

3rd-true.

Answer 7

thanks