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, Glossary of astronomy, Glossary of areas of mathematics, and Glossary of engineering.
Also called the V-number or constringence.Also α-decay.Also symbolized by α2+, He2+, and 42He2+.Often abbreviated as amp.Also electronic amplifier or (informally) amp.Also angular speed, radial frequency, circular frequency, orbital frequency, radian frequency, and pulsatance.Also (rarely) moment of momentum or rotational momentum.
Also Balmer lines.Also known as flexure.Also β-decay.Also called the polarization angle.Also called pedesis.Also centigrade scale.Also called Newtonian mechanics.Also called mass density.Also abbreviated EM field or EMF.Also abbreviated EM radiation or EMR.Also abbreviated emf.Also called electron spin resonance (ESR) and electron magnetic resonance (EMR).Also called fundamental interactions.Also called gravity.Also called the universal gravitational constant and Newton's constant.Also called Kirchhoff's rules or simply Kirchhoff's laws.Also called streamline flow.Also abbreviated LRL vector.Also called material balance.Also called atomic mass number or nucleon number.Also called fusion.Also abbreviated as nanotech.Also spelled nucleide.Also simply called the periodic table.Also called Planck's constant.Also called a radioactive nuclide, radioisotope, or radioactive isotope.Also called angular kinetic energy.Also called speed of revolution.Also called modulus of rigidity.Also called moment or moment of force.Also called the weak force or weak nuclear force.