referenciakeretet

A referenciakeretet, often translated as "reference frame" or "framework of reference," is a fundamental concept in physics and mathematics. It describes a set of axes or a coordinate system that is used to describe the position, motion, and orientation of an object. Essentially, it provides a viewpoint from which measurements are made.

In classical mechanics, the most common referenciakeret is the inertial referenciakeret. This is a frame of reference that is not accelerating. In an inertial frame, Newton's first law of motion, the law of inertia, holds true. Objects at rest remain at rest, and objects in motion continue in motion with constant velocity unless acted upon by a net external force.

However, not all referenciakeretek are inertial. Non-inertial referenciakeretek are those that are accelerating. When describing motion in a non-inertial frame, fictitious forces, such as the centrifugal force or the Coriolis force, must be introduced to account for the observed accelerations that would not occur in an inertial frame. These fictitious forces arise purely from the acceleration of the reference frame itself.

The choice of referenciakeret can simplify or complicate the description of physical phenomena. For example, describing the motion of a planet around the sun is simpler in a heliocentric (sun-centered) reference frame than in a geocentric (earth-centered) one. Relativity theory further expanded the concept of referenciakeretek, showing that the laws of physics are the same in all inertial referenciakeretek, a principle known as the principle of relativity.