The skin vibrates when you hit them.
The head of the drum, the part that is struck by drum sticks, vibrates.
The skin of the drum vibrates to produce sound.
The bottom.skin kf a snare drum.:)
The "electronic" of the keyboard which is hit by the keys touching it.
The ear drum
the bottom head
The air inside the drum.
The head of the drum vibrates when struck. However, the whole drum reverberateswith that vibration. This is what gives the drum its tonal quality.
The tightly stretched surface (membrane) of a drum vibrates.
The head of the drum vibrates. If you get some dry rice grains and put them on the drum head, they will move around.
They both have stretched membrane or a drumhead which is hit and the one that vibrates to produce that sound of the drum.
well I'm pretty sure when you hit the skin (top part) of the drum, it vibrates through the cavity in the base of the drum making a sound