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In physics and astronomy, a frame of reference (or reference frame) is an abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points ― geometric points whose position is identified both mathematically (with numerical coordinate values) and physically (signaled by conventional markers). [1]
Learn how to use frames of reference to describe the motion of objects in different coordinate systems. Explore examples of 1D and 2D frames of reference, collisions, energy changes and inertial frames.
19 de abr. de 2017 · Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/science/physics/one-dimensional-mot...
Learn how to choose a reference frame to measure speed and velocity in different situations. See examples of relative motion and position vs. time graphs.
Learn about the concept of frames of reference in Newtonian relativity, where all motion is relative to a frame of reference. Explore examples of different frames of reference, such as vertical and horizontal, and their accelerations, and how they affect our perception of weight and motion.
Learn how to measure position and motion with respect to different frames of reference, such as Earth, a car, or space. Watch a video and see examples, questions, and tips from other learners.
Let us first, however, briefly review Newton’s mechanics in terms of frames of reference. A “frame of reference” is just a set of coordinates: something you use to measure the things that matter in Newtonian problems, that is to say, positions and velocities, so we also need a clock.
