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Total articles: 989/1,200
Physics basics (62 articles)
General (50 articles)
- Physics (Level 2)
- Outline of physics
- Physical property
- Physical quantity
- Energy (Level 2)
- Matter (Level 3)
- Vacuum (Level 3)
- Fundamental interaction
- Spacetime (Level 4)
- Mass–energy equivalence (Level 4)
- Conservation law
- Hysteresis
- Transport phenomena
- Radiation (Level 4)
- Scalar
- Field (Level 4)
- Gauge theory (Level 4)
- Symmetry (Level 4)
- Instability
- Classical physics
- Theoretical physics (Level 4)
- Experimental physics
- Computational physics
- Statistical physics
- Atmospheric physics
- Biophysics
- Chemical physics
- Polymer physics
- Mathematical physics
- List of unsolved problems in physics
- Scale invariance
- Classical limit
- Macroscopic scale
Physical constants (12 articles)
Atomic, molecular and optical physics (92 articles)
Atomic physics (44 articles)
- Atom (Level 2)
- Atomic physics (Level 4)
- Atomic theory (Level 4)
- Atomic nucleus (Level 4)
- Atomic orbital (Level 4)
- Binding energy (Level 4)
- Plum pudding model
- Rutherford model
- Bohr model (Level 4)
- Electron configuration (Level 4)
- Electron shell (Level 4)
- Exotic atom
- Ion (Level 4)
- Energy level (Level 4)
- Geiger–Marsden experiments (Level 4)
- Principal quantum number
- Azimuthal quantum number
- Magnetic quantum number
- Spin quantum number
- Spectral line
- Spherical harmonics
- Density functional theory
- Rutherford scattering
Molecular physics (9 articles)
- Molecular physics
- Molecular orbital (Level 4)
- Rigid rotor
- Molecular dynamics
- Cross section
- Emission spectrum
- Rotational–vibrational spectroscopy
Optics (39 articles)
- Optics (Level 3)
- Geometrical optics
- Physical optics
- Focus (Level 4)
- Focal length (Level 4)
- Photonics
- Ray
- Polarization (Level 4)
- Reflection (Level 4)
- Refraction (Level 4)
- Transparency and translucency (Level 4)
- Opacity
- Optical depth
- Optical power
- Fresnel equations
- Nonlinear optics
- Birefringence
- Intensity
- Rayleigh scattering
- Aperture
- Angle of incidence
- Virtual image
- Dispersion
- Optical coating
- Shadow
- Beer–Lambert law
- Fourier optics
- Photometry
Color (55 articles)
Basics (22 articles)
- Color (Level 3)
- Blacklight
- CIE 1931 color space
- CIELAB color space
- CIELUV
- CMYK color model (Level 4)
- Color theory (Level 4)
- Gloss (Level 4)
- RGB color model (Level 4)
- Impossible color
- Chromaticity
- Hue
- Tint, shade and tone
Color terms (33 articles)
Condensed matter physics (78 articles)
Basics (13 articles)
- Condensed matter physics (Level 4)
- Solid-state physics (Level 4)
- Mesoscopic physics
- Einstein solid
- Electronic band structure
- Free electron model
- Electron hole
- Soft matter
- Bonding in solids
- Rock magnetism
- Bloch's theorem
Crystallography (28 articles)
- Crystallography (Level 4)
- Crystal (Level 4)
- Crystallization (Level 4)
- Crystal structure
- Crystal optics
- Crystallographic defect
- Crystal twinning
- Miller index
- Atomic packing factor
- Coordination number
- Polymorphism (materials science)
- X-ray crystallography
- Crystal engineering
- Unit cell
States of matter (16 articles)
- State of matter (Level 3)
- Solid (Level 4)
- Liquid (Level 4)
- Gas (Level 4)
- Plasma (Level 4)
- Degenerate matter (Level 4)
- Bose–Einstein condensate (Level 4)
- Superfluidity
- Supercritical fluid
- Supersolid
- Liquid crystal
- Quasiparticle
Phase transitions (21 articles)
- Phase transition (Level 4)
- Phase (Level 4)
- Phase diagram (Level 4)
- Boiling (Level 4)
- Melting (Level 4)
- Freezing (Level 4)
- Evaporation (Level 4)
- Condensation (Level 4)
- Vaporization
- Ionization (Level 4)
- Plasma recombination
- Sublimation (Level 4)
- Deposition
- Critical point (Level 4)
- Triple point (Level 4)
- Miscibility
- Metallic hydrogen
- Curie temperature
- Phase rule
Electromagnetism (120 articles)
Basics (14 articles)
- Classical electromagnetism
- Electricity (Level 2)
- Magnetism (Level 3)
- Dipole (Level 4)
- Metamaterial (Level 4)
- Oil drop experiment (Level 4)
- Photoelectric effect (Level 4)
- Bubble chamber
Electrostatics (16 articles)
- Electrostatics (Level 4)
- Coulomb's law (Level 4)
- Electric charge (Level 4)
- Electric field (Level 4)
- Electric potential (Level 4)
- Electric potential energy
- Electric flux
- Electric dipole moment
- Polarization density
- Dielectric (Level 4)
- Electric susceptibility
- Permittivity
Magnetostatics (18 articles)
- Magnetostatics (Level 4)
- Magnetic field (Level 4)
- Magnetic flux
- Biot–Savart law
- Magnetic dipole
- Magnetic moment
- Magnetization
- Magnetic susceptibility
- Permeability
- Magnetic monopole
- Magnetohydrodynamics
- Ampère's force law
Electrodynamics (23 articles)
- Maxwell's equations (Level 4)
- Lorentz force (Level 4)
- Electromagnetic field (Level 4)
- Electromagnetic four-potential
- Electric current (Level 4)
- Displacement current
- Electric power
- Electromagnetic induction (Level 4)
- Electromotive force (Level 4)
- Eddy current (Level 4)
- Hall effect
- Electrical resistivity and conductivity
- Retarded time
- Lenz's law
Electromagnetic radiation (33 articles)
- Electromagnetic radiation (Level 3)
- Electromagnetic spectrum (Level 4)
- Poynting vector
- Evanescent field
- Transverse mode
- Waveguide
- Larmor formula
- Bremsstrahlung (Level 4)
- Cyclotron radiation
- Synchrotron radiation
- Compton scattering
- Radiative transfer
- Fluorescence (Level 4)
- Faraday effect
- Absorption
- Near and far field
- Radiant flux
- Irradiance
- Point source
- Radiance
- Radiometry
- Spectral density
Electrical circuits (16 articles)
- Electrical network (Level 4)
- Electrical impedance (Level 4)
- Electrical reactance
- Electrical resistance and conductance (Level 4)
- Electrical conductor
- Insulator
- Semiconductor (Level 4)
- Superconductivity (Level 4)
- Capacitance (Level 4)
- Gain (Level 4)
- Ground
- Inductance (Level 4)
- Kirchhoff's circuit laws (Level 4)
Mechanics (276 articles)
Basics (25 articles)
- Mechanics (Level 4)
- Oscillation (Level 4)
- Collision
- Degrees of freedom
- Free particle
- Point particle
- Virial theorem
- Shock
- Mechanical equilibrium
- Displacement
- Test particle
Quantum mechanics (71 articles)
- Quantum mechanics (Level 3)
- Quantum
- Interpretations of quantum mechanics
- Mathematical formulation of quantum mechanics
- Quantization
- Pauli exclusion principle (Level 4)
- Quantum chromodynamics (Level 4)
- Quantum electrodynamics (Level 4)
- Quantum gravity (Level 4)
- Relativistic quantum mechanics
- Quantum entanglement (Level 4)
- Quantum fluctuation
- Quantum field theory (Level 4)
- Quantum tunnelling (Level 4)
- Schrödinger equation (Level 4)
- Dirac equation
- Path integral formulation
- Uncertainty principle (Level 4)
- Wave function (Level 4)
- Wave–particle duality (Level 4)
- Observable
- Operator
- Quantum state
- Particle in a box
- Quantum harmonic oscillator
- Finite potential well
- Delta potential
- Correspondence principle
- Expectation value
- Quantum number
- Parity
- Perturbation theory
- Zero-point energy
- Stern–Gerlach experiment
- Symmetry in quantum mechanics
- Schrödinger's cat
- Bra–ket notation
- Electron diffraction
- Probability amplitude
- Quantum potential
- WKB approximation
- Born rule
- Measurement in quantum mechanics
- Position and momentum spaces
- g-factor
- Gyromagnetic ratio
- Planck postulate
- Quantum indeterminacy
- Quantum superposition
- Quantum foam
Classical mechanics (90 articles)
- Classical mechanics (Level 3)
- Mass (Level 3)
- Momentum (Level 3)
- Force (Level 3)
- Motion (Level 3)
- Newton's laws of motion (Level 3)
- Position
- Speed (Level 4)
- Velocity (Level 4)
- Acceleration (Level 4)
- Jerk
- Fourth, fifth, and sixth derivatives of position
- Equations of motion (Level 4)
- Linear motion
- Circular motion
- Projectile motion
- Trajectory
- Bouncing ball
- Equations for a falling body
- Free fall
- Steady state
- Kinetic energy (Level 4)
- Potential energy (Level 4)
- Scalar potential
- Vector potential
- Moment
- Inertia (Level 4)
- Moment of inertia (Level 4)
- Friction (Level 4)
- Impulse (Level 4)
- Power (Level 4)
- Work (Level 4)
- Action
- Angular displacement
- Angular frequency
- Angular velocity
- Angular acceleration
- Rotation (Level 4)
- Rolling
- Torque (Level 4)
- Weight (Level 4)
- Frame of reference (Level 4)
- Newton's law of universal gravitation (Level 4)
- Fictitious force
- Free body diagram
- Central force
- Restoring force
- n-body problem
- Radiation pressure
- Gravitational field
- Gravitational potential
- Tidal force
- Impact
- Precession
- Vibration
- Damping
- Conservative force
- Force field
- Normal force
- Canonical coordinates
- Resultant force
- Perpetual motion
- Galilean transformation
- Galilean invariance
- Projectile
- Reaction
Fluid mechanics (37 articles)
- Fluid mechanics (Level 4)
- Computational fluid dynamics
- Rheology
- Bernoulli's principle (Level 4)
- Buoyancy (Level 4)
- Convection (Level 4)
- Drag (Level 4)
- Diffusion (Level 4)
- Fluid dynamics (Level 4)
- Lift (Level 4)
- Navier–Stokes equations (Level 4)
- Osmosis (Level 4)
- Reynolds number (Level 4)
- Surface tension (Level 4)
- Turbulence (Level 4)
- Viscosity (Level 4)
- Flow measurement
- Flow velocity
- Fluid
- Mass flow
- Vorticity
- Laminar flow
- Compressible flow
- Incompressible flow
- Hydrostatic equilibrium
- Deformation
- Boundary layer
- Euler equations
- Circulation
- Pipe flow
Solid mechanics (30 articles)
- Solid mechanics (Level 4)
- Deformation (Level 4)
- Elastic modulus (Level 4)
- Elasticity (Level 4)
- Fatigue (Level 4)
- Hooke's law (Level 4)
- Plasticity (Level 4)
- Rigid body
- Stiffness (Level 4)
- Strength of materials (Level 4)
- Stress (Level 4)
- Shearing
- Bulk modulus
- Finite strain theory
- Shear modulus
- Young's modulus
- Contact mechanics
- Piezoelectricity
- Toughness
- Fracture toughness
- Crystallite
Soil mechanics (3 articles)
Statistical mechanics (20 articles)
Nuclear physics (25 articles)
- Nuclear physics (Level 4)
- Radioactive decay (Level 3)
- Nuclear binding energy
- Nuclear fission (Level 4)
- Nuclear fusion (Level 4)
- Nuclear reaction
- Nuclear isomer
- High-energy nuclear physics
- Nuclear force
- Nuclear structure
- Nucleosynthesis (Level 4)
- Semi-empirical mass formula
- Nuclear magnetic resonance
- Island of stability
Particle physics (111 articles)
General (43 articles)
- Particle physics (Level 3)
- Standard Model (Level 3)
- Physics beyond the Standard Model (Level 4)
- Particle (Level 4)
- Scattering (Level 4)
- Annihilation
- CP violation
- CPT symmetry
- Electroweak interaction
- Hierarchy problem
- Feynman diagram
- Generation
- Pair production
- Particle decay
- Discovery of the neutron
- Charge conservation
- QCD matter
- Quark model
- Scalar field theory
- Symmetry breaking
- Noether's theorem
- Baryon asymmetry
- Vacuum energy
Quantum numbers (11 articles)
- Spin (Level 4)
- Baryon number
- Lepton number
- Color charge
- Flavour
- Strangeness
- Isospin
- Weak isospin
- Hypercharge
- Weak hypercharge
- Chirality
Devices (10 articles)
Subatomic particles (41 articles)
General (8 articles)
- Subatomic particle (Level 3)
- Elementary particle
- Force carrier
- List of particles
- Hadron (Level 4)
- Massless particle
- Virtual particle
- Tachyon
Fermions (21 articles)
Bosons (12 articles)
Antimatter (6 articles)
Theory of relativity (35 articles)
- Theory of relativity (Level 3)
- General relativity (Level 4)
- Special relativity (Level 4)
- Principle of relativity (Level 4)
- Equivalence principle (Level 4)
- Gravitational wave (Level 4)
- Lorentz transformation (Level 4)
- Michelson–Morley experiment (Level 4)
- Four-vector
- Relativity of simultaneity
- Time dilation
- Length contraction
- Causality (Level 4)
- Proper time
- Lorentz factor
- Cherenkov radiation
- Energy–momentum relation
- Minkowski space
- Luminiferous aether
- Gravitational singularity
- Hawking radiation
- Spacetime diagram
- Stress–energy tensor
- No-hair theorem
Thermodynamics (89 articles)
- Thermodynamics (Level 3)
- Heat (Level 3)
- Temperature (Level 3)
- Pressure (Level 4)
- Particle number
- Laws of thermodynamics (Level 4)
- Fundamental thermodynamic relation
- Heat capacity (Level 4)
- Latent heat
- Heat transfer (Level 4)
- Entropy (Level 4)
- Internal energy (Level 4)
- Thermodynamic cycle (Level 4)
- Thermodynamic free energy (Level 4)
- Ideal gas
- Heat engine
- Energy conversion efficiency
- Kinetic theory of gases
- Thermodynamic state
- Thermal conductivity
- Thermodynamic equilibrium
- Thermodynamic potential
- Black body
- Equipartition theorem
- Thermodynamic process
- Chemical potential
- Intensive and extensive properties
- Thermodynamic system
- Brownian motion
- Photon gas
- Entropy of mixing
- Fluctuation theorem
- Thermal energy
- Thermal equilibrium
- Thermodynamic equations
- Boltzmann equation
- Maxwell relations
- Thermal expansion
- Thermal fluctuations
Waves (47 articles)
- Wave (Level 3)
- Mechanical wave
- Acoustics (Level 4)
- Amplitude (Level 4)
- Phase
- Frequency (Level 4)
- Wavelength (Level 4)
- Wavenumber
- Wave vector
- Diffraction (Level 4)
- Doppler effect (Level 4)
- Wave interference (Level 4)
- Noise (Level 4)
- Resonance (Level 4)
- Superposition principle (Level 4)
- Wave equation (Level 4)
- Node
- Radio frequency
- Wavefront
- Harmonic
- Pulse
- Wave propagation
- Group velocity
- Phase velocity
- Shock wave
- Waveform
- Coherence
- Standing wave
- Wave packet
- Dispersion
- Plane wave