List of laws in Science - Definition

This is a list of physical laws discovered by science.

• Boyle's Law (pressure and volume of ideal gas)
• Charles & Gay-Lussac (gases expand equally with the same change of temperature)
• Dulong-Petit law (specific heat capacity at constant volume)

<math> c_V = \frac{3R} {M}<math>

• Einstein
  • Relativity

<math> E = mc^2 <math> (Energy = mass × speed of light²)

• Laws of Kepler (planetary motion)
• Beer-Lambert (light absorption)
• Newton
  • Newton's laws of motion (inertia, F = ma, action and reaction)
  • Law of heat conduction
  • General law of gravitation (universal gravitation force)

<math> F_g = \frac{Gm_1m_2} {r^2} <math>

• Coulomb's law

<math> F = \frac{\left|q_1 q_2\right|}{4 \pi \epsilon_0 r^2} <math>

• Ohm's Law

<math> V = IR<math>

• Kirchhoff's Laws (current and voltage laws)
• Maxwell's equations (electric and magnetic fields):

• Navier-Stokes equations of fluid dynamics

<math>-\nabla p +

\mu \left( \nabla^2 \mathbf{u} + {1 \over 3} \nabla (\nabla \cdot \mathbf{u} ) \right) + \rho \mathbf{u} = \rho \left( { \partial\mathbf{u} \over \partial t} + \mathbf{u} \cdot \nabla \mathbf{u} \right) <math>

• Poiseuille's law (voluminal laminar stationary flow of incompressible uniform viscous liquid through a cylindrical tube with the constant circular cross-section)

<math> \Phi_{V} = {\pi r^{4}\over 8 \eta} { \triangle p^{\star} \over l}<math>

• Radiation laws
  • Planck's law of black body radiation (spectral density in a radiation of a black-body)
  • Wien's law (wavelength of the peak of the emission of a black body) :λ₀T = k_w
  • Stefan-Boltzmann law (total radiation from a black body)

<math> j^{\star} = \sigma T^4<math>

• Thermodynamics
  • Onsager reciprocal relations - sometimes called the Fourth Law of Thermodynamics

<math> \mathbf{J}_{u} = L_{uu}\, \nabla(1/T) - L_{ur}\, \nabla(m/T) \!<math>; and

<math> \mathbf{J}_{r} = L_{ru}\, \nabla(1/T) - L_{rr}\, \nabla(m/T) \!<math>.

• Buys-Ballot's law (wind travels counterclockwise around low pressure systems in the Northern Hemisphere)

See also

• Scientific laws named after people