Question

When a pebble is dropped into a pond of still water, what happens?
(A) Particles move
(B) Waves move
(C) The pebble moves
(D) Water moves​

Answer 1

Answer:

(A) Particles move

Explanation:

When a pebble is dropped into a pond of still water, what happens Particles move

Answer 2

On dropping the pebble in still water, the B)waves move.

Waves propagation

• When a pebble or stone hits the surface of a still water body, the kinetic energy of the stone is transferred to the water molecules that come in contact with the pebble.
• This in turn causes the generation of waves which are a series of crests and troughs. These waves or oscillations spread out in the waterbody to vast distances as more and more water molecules receive kinetic energy and start to vibrate.
• As they travel longer distances, they die out because of loss of kinetic energy and the water body becomes still again.

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