Conceptual Physics (12th Edition)

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

Chapter 23 - Reading Check Questions (Comprehension): 22


The domino analogy only works for sound waves.

Work Step by Step

Electric current is established at nearly the speed of light in metals, and electrons everywhere within the wire begin drifting down the wire together. The falling domino model does resemble the way that sound travels, because the sound wave is transmitted locally, with molecules hitting adjacent molecules. This is discussed on page 439.
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