Reflection of Waves Quick Check

Question

3 of 43 of 4 Items
Question
How is an echo formed?(1 point)
Responses

Sound waves travel into a soft surface.
Sound waves travel into a soft surface.

Light waves pass through a shiny surface.
Light waves pass through a shiny surface.

Sound waves bounce off a flat surface.
Sound waves bounce off a flat surface.

Light waves go around a smooth surface.

Answer 1

An echo is formed when sound waves bounce off a flat surface. So the correct response is:

Sound waves bounce off a flat surface.