In Simorg's terminology, the term <<<Physics>>> is referring to all the rules governing a single digital element and its interactions.
This definition is pretty much aligned with a scientific definition of physics which is mostly about studying the matter and energy and the rules governing their interactions. This is expected because one of the three layers of simorg's architecture is Science and physics is one of its sub-layers.
Simorg's physical layer is the layer in which a digital element manifests its existence. This is happening through Vibration.
This layer is shaped on top Mathematics and before Chemistry.