'ऊर्जा संरक्षण का नियम' (law of conservation of energy) कहता है:

उत्तर: CEnergy cannot be created or destroyed — only converted from one form to another. Total energy of an isolated system remains constant. Example: in a pendulum, PE ↔ KE continuously, total stays same.

Level 2Easy
'ऊर्जा संरक्षण का नियम' (law of conservation of energy) कहता है:
ScienceForce and Motion

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