Energy is the quantitative property of a system that measures the interaction between matter and radiation.
Energy is pretty important. There's nuclear energy, chemical energy, electrical energy, thermal energy, radiant energy and mechanical energy. There are all different types of energy, but all of them are needed. You can't really go without one type of energy. Some examples of what energy is used for is: cars, tanning, x rays, heating up your house, etc. In our website, were going to show you all the cool types of energy!