Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 14 - Heat - Questions: 16

Answer

A higher loft has more air pockets and provides better insulation.

Work Step by Step

When the sleeping bag or parka is fluffed up, the goose down traps more air, increasing its insulating power (because air has low thermal conductivity). A higher “loft” value roughly translates to the garment being better at keeping in your body heat.
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