definition of frame of reference

The framework consists of a series of agreements that a researcher, analyst, observer will use, in order to measure a position and also the physical quantities present in a physical system..

The geometric space through which a body will traverse in different positions as an obvious consequence of its movement and the value assigned to the physical magnitudes correspond to the reference frame considered, and for example, the movement will be estimated as relative.

Now, it should be noted that even though the values ​​of the magnitudes may change depending on the system in which they are found, it is a law that will continue to be linked by relationships of a mathematical type that are those that will allow the analyst to anticipate values ​​achieved by another analyst.

Also know as reference system, the concept that concerns us is widely used at the request of the classical mechanics and relativistic mechanics. Let us remember that the first one deals with describing the behavior exhibited by macroscopic physical bodies that are found, either at rest or in very slow motion when compared to the speed of light. While relativistic mechanics or theory of relativity, developed by the scientist Albert Einstein addresses the subject of the movement of bodies and the gravitational force.

In classical mechanics, the concept of a reference frame is used to indicate a coordinate system. This system uses one or more numbers to determine the position that an object or point occupies. An example would make us understand better: the system that allows us to indicate longitudes and altitudes with the mission of locating geographical points.

And in the theory of relativity or relativistic mechanics, the reference frame will imply a series of space-time coordinates which will facilitate the identification of a point of interest in space and with it also the facts of any event with their respective order of succession.