Physics for IGCSE & O level - Waves And Sounds (Section 7 - No. 26)

Where do sound waves get their energy from?

Vibrating objects

Air pressure

The medium they travel through

The listener's ear

설명

Sound waves are caused by vibrating objects.

댓글 (0)

광고

자바스크립트가 이 페이지를 올바르게 로드하도록 허용