Monday, February 8, 2010

Conservation of energy true or false?

Energy is conserved therefore, an energy crisis is impossible because we will always have a constant amount of energy. True of False? explain answerConservation of energy true or false?
1) energy is not conserved, mass-energy is (but this is not very important).





2) energy is only conserved within a closed system. The earth is not a closed system, with a continualenergy input from the sun. When the sun dies, so too will the earth.





3) energy crisis refers to 'stored' forms of energy, in fuels. It does not refer to the abstract concept of 'energy'.

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