Tuesday, 16 April 2013

4.3 understand that energy is conserved


Energy can never be lost, only transferred. Energy will always carry on, just in a different form.
For example, when you switch on a light, you are not loosing energy from a battery (chemical), you are just converting it to light energy!
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6 comments:

  1. tartartarsauce22 March 2016 at 06:33

    Just to clear up some confusion. On the macro scale (Like black holes and the universe) energy is not conserved. Cosmological redshift is an example of energy not being conserved. The definition of energy starts to get muddy when you explore the massive.

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  2. Unknown18 July 2017 at 11:07

    This comment has been removed by the author.

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  3. Unknown28 February 2020 at 11:46

    that was actually rlly helpful im in yr 7 studying physics and dont listen to the other idiots

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