All forms of energy are energy conduction. This means that they transfer from some source to another as a result of some kind of interaction. For instance, any given system with thermal mass, whether it’s a loose ball sitting on a table or a falling leaves on the ground, contains kinetic energy. This energy is transferred to and from the system as a result of its momentum being changed. A spring, whether it’s a nylon string or an elastic rubber band, both have kinetic energy as a result of some kind of impact. A rubber band, due to its elastic property, can be stretched back to its original size, while a nylon string will stretch back the same amount but with a much smaller amount.
Additionally, all forms of energy, whether they be electrical or kinetic, are pure energy. Kinetic energy is simply the product of the change of momentum and the change of temperature. Any change in one variable, such as temperature, will change the amount of energy in some way. This can be seen by an example; when you drop a bowling ball off of a set of stairs, the energy in the ball changes its shape and travels down the stairs.
One of the interesting things about energy is that it can also be affected by the presence of heat. Certain kinds of heat, such as the heat generated during combustion of some fuel, can transfer into energy as well, which makes it useful for moving vehicles. However, in the form of electrical energy, heat is converted into electrical energy. Heat energy is used in most industrial processes, especially those involving heat transfer. The conversion of thermal energy into electrical energy can reduce costs due to heat use, but it has recently become an area of research for many different industries.