Search results
Results from the WOW.Com Content Network
This glossary of physics is a list of definitions of terms and concepts relevant to physics, its sub-disciplines, and related fields, including mechanics, materials science, nuclear physics, particle physics, and thermodynamics. For more inclusive glossaries concerning related fields of science and technology, see Glossary of chemistry terms ...
velocity in terms of the speed of light c: unitless beta particle: gamma: Lorentz factor: unitless photon: gamma ray: shear strain: radian heat capacity ratio: unitless surface tension: newton per meter (N/m) delta: change in a variable (e.g. ) unitless Laplace operator: per square meter (m −2)
Physics/Topics. Classical physics traditionally includes the fields of mechanics, optics, electricity, magnetism, acoustics and thermodynamics. The term Modern physics is normally used for fields which rely heavily on quantum theory, including quantum mechanics, atomic physics, nuclear physics, particle physics and condensed matter physics.
It deals with the motion of particles and the general system of particles. There are many branches of classical mechanics, such as: statics, dynamics, kinematics, continuum mechanics (which includes fluid mechanics), statistical mechanics, etc. Mechanics: A branch of physics in which we study the object and properties of an object in form of a ...
a way of representing a state by several numbers, which corresponds to a complete set of commuting observables. A common example of quantum numbers is the possible state of an electron in a central potential: ( n , ℓ , m , s ) {\displaystyle (n,\ell ,m,s)} , which corresponds to the eigenstate of observables.
1.6 × 10−10. [44] R ∞ = α 2 m e c / 2 h {\displaystyle R_ {\infty }=\alpha ^ {2}m_ {\text {e}}c/2h} Rydberg constant. 10 973 731.568 157(12) m−1. 1.1 × 10−12. [45] R y = R ∞ h c = E h / 2 {\displaystyle \mathrm {Ry} =R_ {\infty }hc=E_ {\text {h}}/2} Rydberg unit of energy.
Physics is the scientific study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. [1] Physics is one of the most fundamental scientific disciplines. [2] [3] [4] A scientist who specializes in the field of physics is called a physicist.
List of physical quantities. This article consists of tables outlining a number of physical quantities. The first table lists the fundamental quantities used in the International System of Units to define the physical dimension of physical quantities for dimensional analysis. The second table lists the derived physical quantities.