What does the law of conservation of energy say about an isolated system?

Total energy stays constant.

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  1. Energy always increases
  2. Total energy stays constant ✔
  3. Energy slowly disappears

Why: In an isolated system, energy can change form but the total amount stays the same. It is never created or destroyed.

Huh, didn't know that: In an isolated system, energy can change form but the total amount stays the same. It is never created or destroyed.

The dad joke
That law is very conserving!
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References

Answer: Total energy stays constant. In an isolated system, energy can change form but the total amount stays the same. It is never created or destroyed.

  1. Energy en.wikipedia.org/wiki/Energy
    the total energy of an isolated system remains constant, although it can be converted in form
    Checked 2026-11-07.

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