Classification by Subdiscipline

Some of the primary physics subdisciplines are

5<2 $ \bullet$5<3 $ \circ$5<4 $ \Box$5<5 $ \Diamond$5<6 $ \sqrt{}$5<7 $ \Rightarrow$$ \bullet$
  • Acoustics
  • Astrophysics
  • Atmospheric and space physics
  • Atomic and molecular physics
  • Biophysics
  • Condensed matter physics
  • Cryogenics
  • Electrodynamics
  • Fluid mechanics and aerodynamics
  • General Relativity and Other Gravity Theory
  • Geophysics
  • Medical physics
  • Nuclear physics
  • Optics and quantum optics
  • Particle physics (aka High Energy Physics)
  • Plasma physics
  • Quantum field theory
  • Thermodynamics and Statistical mechanics
The Big 6
Physics Disciplines
  • Acoustics (Sound and Hearing)
  • Electricity & Magnetism
  • Mechanics
  • Nuclear & Modern Physics (Quantum, Nuclear, Astro, Relativity & Condensed Matter)
  • Optics (Light and Vision)
  • Thermodynamics.

What is Modern Physics?
  • Modern Physics refers to Physics knowledge obtained in the first half of the $ 20^{th}$ century.
  • Often is used to represent the subjects of Quantum Mechanics and Relativity.

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2005-09-23