The great Roman Poet, Lucretius wrote, \"Things cannot be born from nothing, can

Question

The great Roman Poet, Lucretius wrote, "Things cannot be born from nothing, cannot when begottend brought back to nothing." This statement became an accepted theory as a result of the work of the chemist, Lavoisier in the 18th century. This is the law of conservation of matter. Similarly, the law of conservation of energy is an important law in physics. Can you discuss the validity of the conservation of energy in terms of potential (gravitational or elastic) and kinetic energy by giving real-life applications?

Explanation / Answer

Best example will be water falling down from a waterfall. When it is at some height h, it have potential energy mgh and when it falls to the ground and strikes it, the PE converts to Kinetic energy 0.5mv^2.

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