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44 votes
44 votes
If energy is not lost, where does it go?

User Rekaszeru
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2 Answers

18 votes
18 votes

great question!

energy is never lost, but it can be converted or transferred.

for instance, when a book is slid across carpet, it slows down because its kinetic energy from motion is converted into heat energy from the friction between the carpet and book.

energy can be converted into sound, light, thermal, or even potential energy!

User Unda
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3.1k points
23 votes
23 votes
Depends on the situation, but in most cases it is converted to heat
User Cove
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