August 21st, 2008

if the law of conservation states that energy can not be destroyed nor created, why are we ask to save energy?

vhersz asked:


applying the law of conservation, why are we ask to save energy and use it wisely?

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This entry was posted on Thursday, August 21st, 2008 at 5:43 am and is filed under Creative Energy Ideas. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

4 Responses to “if the law of conservation states that energy can not be destroyed nor created, why are we ask to save energy?”

  1. charlesbyrd86 Says:
    August 22nd, 2008 at 2:41 pm

    By save energy, people just mean use less energy. And using less energy really means just using less fuels in the extraction of energy.

    The energy that powers our homes, cars, computers, etc. comes primarily from fossil fuels. That power is created by converting the fossil fuels into CO2 and water. Using less energy means we do less of this conversion in order to save fuel and create less carbon dioxide.

  2. bobmalcomb Says:
    August 25th, 2008 at 10:20 pm

    entropy… energy goes from a useful state to a less useful state. When electricity is in the wall socket it is useful it can do many things bur when it powers a fan then the energy is converted to a slight heating of the room. Now that energy is not as useful. Finally the heat leaks out thru the wall and makes the world a tiny tiny bit warmer.

  3. Joseph B Says:
    August 26th, 2008 at 5:40 am

    The sources we are using to make electricity like coal and oil have limited quantities. If we run out of them before we can develop the technology to utilize other forms of energy, we are in a bit of trouble.

  4. profQ Says:
    August 27th, 2008 at 9:08 pm

    taking fossil fuel that can be used to transform chemical energy into energy like electrical energy to our homes or petrol to run cars for example, what is required is to dig up these natural fossil fuel to extract the energy.
    the efficiency however in most of this cases is very low, about 20% of the chemical energy becomes useful energy. the other energy goes into the byproduct like heat energy and noise energy. Also, a lot of carbon dioxide and other pollutants are produced.
    thus, in conserving energy by reducing usage, we reduce all these wastages and production of byproducts that lead to environmental issues like global warming.