F Famous physicists; see list of physicists Faraday cage Faraday constant Faraday's law Faraday, Michael Fahrenheit Fahrenheit, Daniel Gabriel Fast Fourier transform Faster-than-light Fermat's principle Fermi energy Fermi gas Fermi liquid theory Fermi paradox Fermi-Dirac statistics Fermi, Enrico Fermi-Thomas screening wave vector Fermion Ferroelectric effect Ferromagnetism Feynman diagram Feynman, Richard Ficks law of diffusion Field Fifth force Fincke, Thomas Finite difference Finite element method Fitch, Val Logsdon FitzGerald, George Francis FitzGerald-Lorentz Contraction Fizeau, Armand Hippolyte Louis Fizeau-Foucault apparatus Float-Zone process Fluid dynamics Fluid mechanics Fokker-Planck equation Forbidden line Force (physics) Force carrier Force spectroscopy Foucault, Jean Bernard Léon Four-momentum Fourier analysis Fourier series Fourier transform Fourier, Jean Baptiste Joseph Fowler, William Alfred Frame of reference Franck, James Frank, Il'ja Mikhailovich Franklin, Benjamin Fraunhofer, Joseph von Fraunhofer diffraction Fraunhofer line Free energy Free electron gas Free-electron laser Frequency Fresnel, Augustin-Jean Fresnel diffraction Fresnel equations Fresnel zone Friction Friedman, Jerome I Fundamental force Fundamental particle Furth, Harold Fusion G G force Gabor, Dennis Galilean relativity Galilean-Newtonian relativity Galilean transformation Galilei, Galileo Galvanometer Gamma ray Gamow, George Gamow factor Gas mechanics Gas Gas laws Gauge boson Gauge field theory Gauge invariance Gauge theory Gauge transformation Gauss Gauss's law Gauss, Carl Friedrich Gay-Lussac, Joseph Louis Gay-Lussac's law Gee Geiger-Marsden experiment Gell-Mann, Murray General relativity Geodesic Geometer Geometers Geometrized units Geophysics GHZ experiment Giacconi, Riccardo Giaever, Ivar Gibbs, Willard Gibbs paradox Glaser, Donald Arthur Glashow, Sheldon Lee Gluon Goeppert-Mayer, Maria Graham's law Grand unification theory Grandfather paradox Gravitational binding energy Gravitational constant Gravitational force Gravitational red shift Gravitational singularity Gravitational wave Gravitomagnetism Graviton Gravity Greisen-Zatsepin-Kuzmin limit Grimaldi, Francesco Maria Ground state Group delay Group transformation Group velocity Guillaume, Charles Edouard Gyrocompass Gyroscope H Hadron Hadronization Hagen, Gotthilf Hall, Edwin Hall effect Halley, Edmund William Rowan Hamilton Hamilton, William Rowan Hamilton-Jacobi equation Hamiltonian Hamiltonian mechanics Harmonic oscillator Hartree energy Hawking, Stephen Hawking radiation Heat Heat equation Heaviside, Oliver Heisenberg Heisenberg, Werner Heisenberg, Werner Karl Hellmann-Feynman theorem Helmholtz, Hermann von Hermite, Charles Hermitian Hermitian adjoint Hermitian operator Hero of Alexandria Henry, Joseph Hertz, Gustav Ludwig Hertz, Heinrich Hess, Victor Franz Hessian Hewish, Antony Hidden variable theory Higgs boson Higgs field Higgs mechanism Higgs, Peter High energy physics High pressure physics Hilbert space History of physics Hofstadter, Robert Holography Hooft, Gerardus 't Hooke's law Hooke, Robert Houtermans, Fritz Hückel, Erich Hückel, Erich Hull, Gordon Ferrie Hume, David Hydraulics Hydromechanics Hydrostatics Huygens, Christiaan Huygens' principle hydraulics Hydrodynamics Hydrogen atom Hydrostatic equilibrium Hydrostatics Hyperfine level Hysteresis I Ideal gas Ideal gas law Ideally imperfect gas Identical particles Impedance Impulse Incompressible flow Indirect bandgap Inertia Inertial force Inertial frame of reference Insulator Intellectual history of time Intensive variable Interatomic force Interferometry Intermolecular force International Geophysical Year Interpretation of quantum mechanics Introduction to Geomagnetically Trapped Radiation Invariant Inverse-square law Iridescence Isentropic process Ising model Isolated singularity Isospin Isotopic spin J Jacobi, Carl Gustav Jakob Jacobian Jaynes, Edwin Jellium Jensen, J. Hans D Johnson-Nyquist noise Josephson effect Josephson, Brian David Joule, James Prescott Joule-Thompson effect Joule's law Journal of Physics K Kaluza-Klein theory Kamerlingh-Onnes, Heike Kapitsa, Pyotr Leonidovich Kastler, Alfred Kelvin Kelvin-Helmholtz instability Kendall, Henry W Kendall, Henry W Kennedy-Thorndike experiment Kepler, Johannes Kerr metric Ketterle, Wolfgang Kilby, Jack S Kinematics Kinetic energy Kinetic theory Kirchhoff's Laws Kirchhoff, Gustav Kirkendall effect Klein paradox Knife-edge effect Koshiba, Masatoshi Kroemer, Herbert Kusch, Polycarp L LADAR Ladder operator Langevin, Paul Langevin equation Lagrange, Joseph Louis Lagrange bracket Lagrange multiplier Lagrangian Lagrangian mechanics Lagrangian point Lamb, Willis Eugene Lamb-Retheford shift Lambert, Johann Heinrich Laminar flow Landau, Lev Davidovich Lande g-factor Langmuir, Irving Laplace operator Laplace's equation Laplace, Pierre Simon Large Electron Positron Large Hadron Collider Laser Laser applications Laser construction Laser diode Laser science Lattice Laue, Max von Laughlin, Robert B Law of Charles and Gay-Lussac Law of conservation of energy Law of heat conduction Law of mass-energy conservation Law of nature Law of physics Lawrence, Ernest Orlando Laws of nature Laws of physics Lederman, Leon Lederman, Leon M Lee, David M Lee, Tsung-Dao Lenard, Philip von Length Length contraction Josef Lense Lense-Thirring effect Heinrich Lenz Lenz's law Lepton Lever Leverage LIDAR Lie algebra Lie group Lie, Sophus Light Likelihood Likelihood-ratio test Linear momentum Linear motor Linear operator Linear polarization Liouville operator Lippmann, Gabriel Liquid drop model Liquid helium Liquid mechanics List of equations in classical mechanics List of laws in science List of letters used in mathematics and science List of physics topics List of optical topics List of thermodynamics topics Lobachevsky, Nikolai Ivanovich Local coordinate system Locality principle Loop quantum gravity Lord Kelvin Lorentz, Hendrik Lorentz-Fitzgerald contraction hypothesis Lorentz force Lorentz group Lorentz-Poincaré group Lorentz transformation Lorentz transformation equations Lorentzian relativity Lucretius Luminiferous aether Luminosity Lyman, Theodore