Lesson: Chapter 4 — Waves and their applications

What a wave is 2 of 4 Reset answers

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Question 2

A plastic ball floats on a pond. A wave passes under it. What does the ball do?

A It moves up and down where it is B It stays completely still C It is carried to the bank with the wave D It sinks

The right answer is the one marked above.

It moves up and down where it is. The wave gives it energy, so it moves — but a wave does not carry the medium, or anything floating on it, along with it.

Staying completely still would mean no energy reached it, which is not what happens.

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