Mechanics | Definition, Examples, Laws, & Facts | Britannica
Mechanics, branch of physics concerned with the motion of bodies under the action of forces, including the special case in which a body remains at rest. Historically, mechanics was among …
Physics | Definition, Types, Topics, Importance, & Facts | Britannica
2024年11月5日 · Physics, science that deals with the structure of matter and the interactions between the fundamental constituents of the observable universe. Its scope of study …
Fluid mechanics | Definition, Equations, Types, & Facts | Britannica
fluid mechanics, science concerned with the response of fluids to forces exerted upon them. It is a branch of classical physics with applications of great importance in hydraulic and aeronautical …
Quantum mechanics | Definition, Development, & Equations
2024年11月7日 · Quantum mechanics, science dealing with the behavior of matter and light on the atomic and subatomic scale. It attempts to describe and account for the properties of …
Mechanics and the concept of classical mechanics | Britannica
Newton’s theory of mechanics, known as classical mechanics, accurately represented the effects of forces under all conditions known in his time. It can be divided into statics, the study of …
Mechanics - Physics, Forces, Motion | Britannica
Mechanics - Physics, Forces, Motion: The discovery of classical mechanics was made necessary by the publication, in 1543, of the book De revolutionibus orbium coelestium libri VI (“Six …
Mechanics - Vectors, Forces, Motion | Britannica
Mechanics - Vectors, Forces, Motion: The equations of mechanics are typically written in terms of Cartesian coordinates. At a certain time t, the position of a particle may be specified by giving …
Mechanics - Rigid Bodies, Forces, Motion | Britannica
Mechanics - Rigid Bodies, Forces, Motion: Statics is the study of bodies and structures that are in equilibrium. For a body to be in equilibrium, there must be no net force acting on it. In addition, …
Newton’s laws of motion | Definition, Examples, & History
2024年11月5日 · Newton’s laws of motion, three statements describing the relations between the forces acting on a body and the motion of the body, first formulated by English physicist and …
Physics Portal | Britannica
Physics, the basic physical science, studies objects ranging from the very small (using quantum mechanics) to the entire universe (using general relativity). It deals with the structure of matter …