Energy Talk!

xolailaxo asked:


The law of conservation of energy states that when one form of energy is converted to another, some energy is destroyed.
True
False

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8 Responses to “The law of conservation of energy states that when one form of energy is converted to another, some energy is?”

1. 517 Says:
   September 9th, 2007 at 6:34 pm

   True, but many times it is lost in the form of heat or flux.

2. S . Says:
   September 10th, 2007 at 10:18 pm

   False. No energy is destroyed (conservation of energy means it cannot be made or destroyed) but some is dissipated (used up in other ways - e.g. when a wind-up toy car moves, the potential elastic energy isn’t just converted to kinetic energy, some is also used us as heat or sound energy).

3. Lindsey Says:
   September 12th, 2007 at 4:10 am

   False.
   Energy is converted from one form to another, but it is never created nor destroyed.

4. cooldude8870 Says:
   September 15th, 2007 at 4:09 am

   false energy cannot be destroyed only transfered to another form. so like you can turn electricity to heat and solar to electricity etc… so the answer is false.

5. 1999 Nissan Skyline GTR Vspec Says:
   September 18th, 2007 at 2:14 pm

   false

   energy in the universe remains constant it jus changes form if it changes into heat it changes into thermal energy

   heat is thermal energy

6. Blue Sky Says:
   September 19th, 2007 at 9:51 am

   Not destroyed - but lost, most likely to heat. That’s when the law of entropy comes in. Basically the 3 laws say;

   1st law - you can’t win at this game
   2nd law - you can’t break even at this game
   3rd law - you can’t quit this game

7. Devon V Says:
   September 19th, 2007 at 3:18 pm

   False.

   By definition, the law of conservation of energy states that energy cannot be created or destroyed, it can only be converted to another form. An example of this is light bulb, which, when turned on converts the inputted electrical energy to light (which is a radiant, electromagnetic energy) but some energy is also converted to heat that the filament gives off. So basically energy is NEVER created or destroyed, the amount of energy in the universe at the big bang is the same as the amount of energy now.

8. some_random_guy61 Says:
   September 22nd, 2007 at 5:08 am

   false. energy is never destroyed. EVER.

   in a normal reaction, energy is converted from one form to another. say, kinetic to heat (friction). the energy is all CONSERVED, so none is lost.

   however, in nuclear chemistry, it is possible for energy to be created. this involves the destruction of mass. however, this is still creation of energy, not destruction.

   so, false.