The kingdom of physics, like the one of any other science, is limited. In great part, for this is the great success of physics and of the science in general. For instance, the physics is not concerned about the origin of perception; nor about the origin of what causes the perception. Those problems are of the competence of other sciences. For example, the physiology, the psychology, etc. The problems of physics are others.
We will illustrate the kingdom of physics in the next sections. And in Section 4 we will show the way in which the results of the physics have changed the society and the benefits that have given to it by the physics. Besides we will discuss the utility of physics.
The dominion of physics is restricted, first, by its most elementary precepts; second, by its general objective. The general objective of physics were showed in the above paragraphs. The precepts of physics are those of all natural exact science; we will describe them in the next section.