Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 20 - Reading Check Questions (Comprehension): 18

Answer

Sound sometimes refracts underwater because the speed of sound in water depends on the temperature.

Work Step by Step

Refraction is caused when waves travel between different regions and change speed. This often causes the wave to change direction (refract). This is discussed on page 381.
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