Conceptual Physics (12th Edition)

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

Chapter 15 - Reading Check Questions (Comprehension): 23

Answer

The bimetallic strip is composed of 2 types of metals that undergo different rates of thermal expansion when heated or cooled. This places one of the metals in tension, the other in compression, and the strip bends.

Work Step by Step

This is discussed on pages 292-293, and the effect is shown in Figure 15.15.
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