In science, physical science is the study of matter and energy (or force) and, generally speaking, is an umbrella term referring to the grouped subjects of physics, chemistry, and thermodynamics. [1]
Etymology
In 1876, Scottish physicist James Maxwell, following a brief prefaced note that 19th century physical science is the extension of the 18th century study of the forces acting between one body and another, gave the following definition of physical science: [2]
“Physical science is the study of natural phenomena in which the energy of a material system is conceived as determined by the configuration and motion of that system, and in which the ideas of configuration, motion, and force are generalized to the utmost extent warranted by their physical definitions.”
“There now follows a group of physical sciences, which are referred to as mechanics, physics and chemistry. They also correspond to an increasing diversity of the considered properties or relations and have also its summary term. This is the concept of energy, such as the physical sciences can be summarized as the study of the various activities of the energy.”
“See how physical science which is reason’s trade
And high profession, booketh ever and docketeth
All things in order and pattern.”— Robert Bridges (1929), Testament of Beauty [4]