nonexistent
Free space is a term used in classical physics. It is a region of space that has no gravitational or electromagnetic fields. It is used as an absolute standard.
Alfred A. Robb has written: 'The absolute relations of time and space' -- subject(s): Accessible book, Relativity (Physics), Space and time, Relativity
The same as in modern physics: there is really no physically meaningful way to define absolute motion.
World in spacial terms is when you are looking at the absolute location of something or the relative location of something. For example, absolute location would be a specific address like 555 Comedian Drive. Relative would be like the candy shop next door to Petroglyph. :)
There isn't a difference. Astrophysics is the same thing as 'space physics'.
example of the following terms of absolute location
Physics is the study of matter and its motion. (Along with the study of space and time.)
example of the following terms of absolute location
K space refers to a space where things are in terms of momentum and frequency instead of position and time and the way you convert between real space and k-space (or Fourier space) is a mathematical transformation called the Fourier transform (and Inverse Fourier transform). This K-space also exists in classical physics. In quantum mechanics the space is made up of discrete values of K, whereas in classical physics K can take on a continuum of values.
There is no beginning of space in terms of physics. For space treaties, and particularly the Outer Space Treaty of the United Nations (from 1967), the Kármán line at 100 km (62 miles) above Earth is used as the start of outer space. This line is conventionally accepted as the beginning of space.
Yes, those terms are synonymous.
Physics is the scientific study of the basic structure and behavior of nature in terms of matter, energy, and forces and how they relate within the framework of space and time. All natural entities whether microscopic or macroscopic, animate or inanimate, are treated within the scientific discipline of physics.