Fill a bucket with water. wait until the water stops moving around and becomes completely still. tap the side of the bucket and watch what happens. ripples form on the surface of the water. how are the ripples formed?
a)
vibrations in the wall transmitted to the water surface
b)
by the motion of molecules of h2o in the bucket
c)
the release of bubbles in the water every time the wall is struck
d)
natural vibrations due to sounds that are always present in the air