Question

Sound waves cannot travel in a vacuum because

A. there is nothing for them to travel through
B.there can be no waves of any kind in a vacuum
C.they cannot get up enough speed
D.their wavelengths are too long
PLEASE HELP

Answer 1

@HazelLuv99

Answer 2

@robtobey

Answer 3

A. there is nothing for them to travel through
sound travels displacing the molecules that form the medium, for example air molecules.