Classical physics encompasses Newtonian mechanics, classical electrodynamics, and the theories of special and general relativity, with the latter sometimes debated as "classical." Kinematics in One Dimension is definitively classified as classical physics, as it does not involve quantum mechanics. The discussion highlights that classical electrodynamics, developed in the 19th century, is considered classical despite its relativistic nature. Ultimately, relativity serves to address inconsistencies in classical physics, while quantum theory represents a fundamental shift away from classical concepts.
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Sure, kinematics is part of "classical" physics. But note that homework problems belong in the Homework section.askor said:Does Kinematics in One Dimension such as in Physics textbook is considered a "Classical Physics"?
That's not so easy to answer, because not everybody agrees on what's "classical physics". For me classical physics is everything which is not quantum physics, i.e., on a fundamental level classical physics consists of Newtonian mechanics, classical electrodynamics, and special as well as general relativity. Some people also call relativity "not classical" though.askor said:Can someone please tell me what is Classical Physics?
Does Kinematics in One Dimension such as in Physics textbook is considered a "Classical Physics"?
So is classical electrodynamics (Maxwell's and the Maxwellian's version of it) then classical, because it was definitely discovered in the 19th century or is not not classical, because it's the paradigmatic example of a relativistic (gauge) field theory?Delta2 said:I am an old romantic of the end of the 19th century, in my opinion classical physics is all physics as they have been assembled up to the end of 19th century 1880-1900 and they don't include special or general relativity, and of course not anything quantum (quantum mechanics, quantum electrodynamics).
Classical Electrodynamics are part of classical physics, they were discovered in the 19th century and no one knew back then what is a relativistic gauge field theory and that CED is one such theoryvanhees71 said:So is classical electrodynamics (Maxwell's and the Maxwellian's version of it) then classical, because it was definitely discovered in the 19th century or is not not classical, because it's the paradigmatic example of a relativistic (gauge) field theory?
Also relativity is just a smooth continuation of the "good old classical physics". It's just "repairing" the inconsistencies of classical physics as far as the spacetime description is concerned, dealing with the intrinsic contradictions between the Galilei-Newtonian spacetime structure with Maxwell's electrodynamics. All of what you call "classical physics", based on Galilei-Newton spacetime, was very quickly "translated" into its relativistic version (though it took some decades to sort out some quibbles with subjects like thermodynamics).
In contradistinction to that quantum theory was really a revolution, which indeed forced the physicists to abandon the "old romantic" deterministic worldview, and that's why I would think that it's more appropriate to count relativity to classical physics while quantum theory is really something new.