Conceptual Physics (12th Edition)

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

Chapter 35 - Think and Explain: 85

Answer

Yes, when something gains energy, it gains mass.

Work Step by Step

Chemical potential energy is added to the battery during the charging process. This energy has mass, according to $E = mc^{2}$. The change would be far too small to detect, though.
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