15-10-2010, 02:03 PM
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Energy: Forms and Changes
Nature of Energy
Energy is all around you!
You can hear energy as sound.
You can see energy as light.
And you can feel it as wind.
What is energy that it can be involved in so many different activities?
Energy can be defined as the ability to do work.
If an object or organism does work (exerts a force over a distance to move an object) the object or organism uses energy