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Confused about conservation of energy

  1. Apr 29, 2014 #1
    Why is it that when you drop something on a spring, that item dropped on the spring does not bounce back up to where you dropped it from?
  2. jcsd
  3. Apr 29, 2014 #2


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    Staff: Mentor

    Springs are not perfectly elastic, so some energy is "lost". Can you guess where it might go?
  4. Apr 29, 2014 #3
    Would it turn into heat and sound energy?
  5. Apr 29, 2014 #4


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