What is the scope of classical mechanics (Tianjin 20 15 physics senior high school entrance examination)? Please answer! ! !

The edifice of classical mechanics is based on Newton's laws. So the application scope (or conditions) of Newton's motion is the application scope of classical mechanics. The description of the application scope of classical mechanics in high school physics textbooks is:

Classical mechanics is only suitable for solving the problem of low-speed motion of macroscopic objects, but not for dealing with the problem of high-speed motion; Classical mechanics is only applicable to macroscopic objects, but generally not to microscopic particles.

There are two main points: first, the speed is low; The second is macro.