When Sanika gently touches the paper cone of a speaker while music is playing, she feels a tingling…
When Sanika gently touches the paper cone of a speaker while music is playing, she feels a tingling sensation in her fingers. When the music stops, the sensation stops. What does this observation prove?
Sound causes electrical charges to move in the speaker
Sound is produced only when an object is in a state of vibration
Sound travels through human skin as heat energy
Air particles stop moving when music plays
Solution
Sound is produced by vibrating objects. When the music stops, the speaker cone stops vibrating, so the tingling sensation ceases.