Assertion: sound wave | /r/HasAspect | medium
Facets:
Source sentences:
text: Mechanical” means that sound waves must have a medium to pass through.
text: Light does not need a medium to travel through, but since sound waves must have a medium to vibrate, sound is not created where no air is present.
text: Light does not need a medium to travel through, but since sound waves must have a medium to vibrate, sound is not created where no air is present.