The word physics comes from the Greek word ἡ φύσις, meaning "nature". It is the oldest of the physical sciences, is the study of the motion of objects. 1 MOTION Motion, more properly called "mechanics," is the oldest branch of physics, having been put on a firm quantitative basis by Isaac Newton (1642-1727) who by the age of 24 had also developed calculus, which subsequently became an indispensable tool of science. Mechanics deals with all kinds and complexities of motion. A brief treatment of kinematics follows. Physics is the branch of science which is concerned with the nature and properties of non-living matter and energy that are not dealt with by chemistry or biology, and the fundamental laws of the material universe. The branch of science that deals with the study of the motion of the body, its causes, and its effects. The oldest known human DNA, which may belong to a mysterious branch of humanity, reveals human evolution was even more confusing than thought, researchers say. It studies matter, forces and their effects.. Kinematics, branch of physics and a subdivision of classical mechanics concerned with the geometrically possible motion of a body or system of bodies without consideration of the forces involved (i.e., causes and effects of the motions). Mechanics is the oldest branch of physics. Astrobiology – studies the advent and evolution of biological systems in the universe. His work in ancient physics spread around the known world and was the major conduit through which the knowledge of the Greeks passed on to the great Islamic scholars of the medieval period. Motion in One Dimension. As such, it is a huge and diverse area of study. ; Astrophysics – branch of astronomy that deals with the physics of the universe, including the physical properties of celestial objects, as well as their interactions and behavior. The formulas for motion in one dimension (Also called Kinematical equations of motion) are as follows. For full treatment, What is mechanics in physics? It includes various techniques, which can simplify the solution of a mechanical problem. Branches of astronomy. Physics is a branch of science.It is one of the most fundamental scientific disciplines.The main goal of physics is to explain how things move in space and time and understand how the universe behaves. Astrophysics is a branch of space science that applies the laws of physics and chemistry to explain the birth, life and death of stars, planets, galaxies, nebulae and other objects in the universe.