What is the Meaning & Definition of frame of reference

The framework consists of a series of agreements that will employ a researcher, analyst and observer, to measure a position from them and also to the physical quantities in a physical system. The geometric space which will pass through a body like obvious consequence of their movement in different positions and the value assigned to the physical quantities correspond to the frame of reference considered, and case is that the movement he will estimate it is as relative.
Now, to be noted is that even despite the fact that the values of the variables can change depending on the system in which it is situated, is a law that will remain linked by mathematical relationship which are which will allow the analyst to anticipate values achieved by another analyst.
Also known as reference system, the concept that we are discussing is widely employed at the behest of classical mechanics and relativistic mechanics. Let us remember that the first deals with describing behavior that presented macroscopic physical bodies that are, whether at rest or in motion very slow if compared with the speed which holds the light. While the relativistic mechanics or relativity, developed by the scientist Albert Einstein theory deals with the theme of the movement of the bodies and the force of gravity.
In classical mechanics, the concept of frame of reference is used to specify a coordinate system. This system employs one or more numbers to determine the position that an object or point occupied. An example would do it ourselves understanding: the system that allows us to indicate altitudes with the Mission of locating geographical points and lengths.
And in the theory of relativity or relativistic mechanics, the reference framework will involve a series of space-time coordinates which will facilitate the identification of a point of interest in space and thus also the facts of any event with their respective order of succession.