Does the magnitude of a physical quantity depend on the chosen frame of reference?

Explanation

The magnitudes of the physical quantities related to the intrinsic properties like mass density number of molecules, etc. are independent of the frame of reference. But the magnitudes of the physical quantities denoting extrinsic or dynamic properties like position displacement , speed, velocity , acceleration etc. depend on the fram of reference. For example a train moves with a velocity of 45 `"km.h"^(1)` with respect to the ground. But with respect to another train, running with the same velocity this velocity will be zero. Note : According to Einstein.s special theory of relativity, the intrinsic properties like mass length time etc. depend on the frame of reference.