Why do drums make sound without strings?

Answer: Drumhead membrane vibrates rapidly

Hollow drums trap and release sound — Wrong. Drums don't store sound! The stretched membrane (drumhead) vibrates when struck, creating new sound waves. The hollow body amplifies these vibrations, but the drumhead is the primary sound source.

Drumstick hitting creates the sound — Wrong. The stick's impact starts vibration, but the sound comes from the drumhead membrane vibrating continuously after being struck.

Drumhead membrane vibrates rapidly ✓ — Correct! Drums have a stretched membrane (drumhead) that vibrates when struck, creating sound waves. The membrane's tension, size, and material determine pitch and tone. Air inside the drum amplifies these vibrations, but the drumhead is the primary sound source.