We want to talk about energy. It is one of the fundamental concepts in physics. But what is it exactly?
This question may sound silly, but it’s not. Official science Define says that energy is the capacity to complete some kind of work. But in reality, this sentence doesn’t convey much information.
We know that there are many different forms of energy: thermal, electrical, chemical, nuclear, kinetic, potential energy, just to name a few. They are all based on different physical phenomena – so why do we call them by the same word – energy? Watch the following video for the answer:
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