Branches of Physics

Theory Major subtopics Concepts
Classical mechanics Newton’s laws of motion,Lagrangian mechanics,Hamiltonian mechanics,

kinematics,

statics,

dynamics,

chaos theory

acoustics,

fluid dynamics,

continuum mechanics

Density,dimension,  gravity,spacetimemotion,length, position, velocity,accelerationGalilean invariance,mass,momentumimpulse,forceenergyangular velocity,angular momentum,moment of inertiatorque,

conservation law,harmonic oscillator,

waveworkpowerLagrangian,

HamiltonianTait–Bryan angles,

Euler angles

Electromagnetism Electrostatics,electrodynamics,electricity,

magnetism,

magnetostatics,

Maxwell’s equations,

optics

Capacitance,electric charge,current,electrical conductivity,electric field,electric permittivity,

electric potential,

electrical resistance,

electromagnetic field,

electromagnetic induction,

electromagnetic radiation,

Gaussian surface,

magnetic field,

magnetic flux,

magnetic monopole,

magnetic permeability

Thermodynamics 

and

statistical mechanics

Heat engine,kinetic theory Boltzmann’s constant,                                   conjugate variablesenthalpy,                              entropyequation of state,                              equipartition theorem,                                thermodynamic free energy,                                     heatideal gas lawinternal energylaws of thermodynamicsMaxwell relations,                  irreversible processIsing model,                     mechanical actionpartition function,                  pressurereversible process,                        spontaneous processstate function,                   statistical ensembletemperature,                   thermodynamic equilibrium,                        thermodynamic potential,                           thermodynamic processes,                       thermodynamic state,                                thermodynamic systemviscosity,                       volumeworkgranular material
Quantum mechanics Path integral formulation,scattering theory,Schrödinger equation,

quantum field theory,

quantum statistical mechanics

Adiabatic approximation,                         black-body radiation,                  correspondence principle,                           free particleHamiltonian,                       Hilbert space,identical particles,                matrix mechanicsPlanck’s constantobserver effectoperators,                     quantaquantizationquantum entanglementquantum harmonic oscillatorquantum number,                 quantum tunnelingSchrödinger’s catDirac equation,spinwavefunction,              wave mechanics,                                     wave–particle duality,                                 zero-point energy,                              Pauli Exclusion Principle,                   Heisenberg Uncertainty Principle
Relativity Special relativity,general relativity,Einstein field equations CovarianceEinstein manifold,            equivalence principle,                                 four-momentumfour-vector,                   general principle of relativity,                 geodesic motiongravitygravitoelectromagnetism,                         inertial frame of reference,                              invariancelength contraction,              Lorentzian manifold,                                  Lorentz transformation,                           mass–energy equivalence,                       metricMinkowski diagram,                   Minkowski spaceprinciple of relativity,proper length,                            proper timereference frame,                        rest energyrest mass,                           relativity of simultaneity,                        spacetime,                                               special principle of relativity,                  speed of light,                                              stress–energy tensor,                                     time dilationtwin paradox,                 world line
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