Bill Nye, one fo the greatest educators of our times, explains in this old video what energy is. Many know that energy is conserved, that you can’t make or destroy energy, that is transforms and that ii is equal with the work done by a force that needs to move an object for a given distance.
But what is energy?
Energy is an abstract concept, a “thing” that is conserved, a mathematical way to track transformations and interactions. It is a numerical value that describes some phenomena.
You can also read what energy is here and also see some extra explanations int he video from below: