Mechanics of particles and systems Foundations of particle mechanics Concept
Momentum
Builds on Classical mechanicsVelocity
Summary
The momentum of a particle is its mass times its velocity, a vector that points in the direction of motion. In classical mechanics, the net force on a particle equals the rate of change of its momentum. The total momentum of an isolated system stays constant, which makes momentum one of the basic conserved quantities of mechanics.
Reading path
To understand this page from the ground up, read these 7 pages in order. The foundations come first.
Show the path as a graph
- no evidence level
- Derivative concept
- Euclidean space object
- Euclidean vector concept
- Ordinary differential equation concept
- Velocity concept
- Classical mechanics concept
- Momentum concept
Where this leads
156 pages build on this one.
- Inelastic collision
- Emden–Chandrasekhar equation
- Newton's law of universal gravitation
- Sundman's convergent series for the three-body problem
- Physical oceanography
- Chandrasekhar's white dwarf equation
- Jeans's theorem
- Coefficient of restitution
- Dedekind ellipsoid
- Hydrostatic equilibrium
- Tidal force
- Relativistic angular momentum
- Molecular dynamics
- Magnetic braking
- Coriolis force
- Virial theorem
- Tests of general relativity
- Milankovitch cycles
- Angular momentum
- Stellar structure
- Thermal wind
- Modified Newtonian dynamics
- Kelvin–Helmholtz mechanism
- Atmospheric dynamics
- Hohmann transfer orbit
- Central configuration
- Lense–Thirring precession
- Schwarzschild criterion for convection
- Virial mass
- von Zeipel theorem
- Norton's dome
- Jacobi integral
- Laplace–Runge–Lenz vector
- Galaxy rotation curve
- Celestial mechanics
- Weak gravitational lensing
- Kepler's equation
- Bi-elliptic transfer
- Ekman spiral
- Planetary migration
- Mass–luminosity relation
- Central force
- Accretion disk
- Conservation of energy
- Tennis racket theorem
- Poynting–Robertson effect
- Einstein–Infeld–Hoffmann equations
- Lens equation
- Lagrange top
- Taylor's constraint
- Two-body problem
- Ledoux criterion
- Impulse
- Orbital mechanics
- Bonnor–Ebert mass
- Tolman–Oppenheimer–Volkoff limit
- Post-Newtonian expansion
- Cyclic coordinate
- Adams–Williamson equation
- Kovalevskaya top
- Tisserand's parameter
- Polytrope
- Projectile motion
- Gravitational microlensing
- Plummer model
- Painlevé paradox
- Tsiolkovsky rocket equation
- Hayashi track
- Euler top
- Stellar pulsation
- Euler's three-body problem
- Figure-eight solution of the three-body problem
- Singular isothermal sphere
- Conservation of angular momentum
- Parker solar wind model
- Hadley cell and Held–Hou model
- Impulse
- Elsasser number
- Clohessy–Wiltshire equations
- Escape velocity
- Chandrasekhar limit
- Tidal acceleration
- Gravitational deflection of light
- Binet equation
- Fictitious force
- Maclaurin spheroid
- Jacobi integral
- Newton's laws of motion
- Goryachev–Chaplygin top
- Kepler's laws of planetary motion
- Dynamical friction
- Mixing length theory
- Kepler's equation
- Kepler orbit
- Foucault pendulum
- Euler force
- Elastic collision
- Binet equation
- Hill sphere
- Spherical astronomy
- Euler's equations of rigid body motion
- Roche limit
- Coriolis force
- Polhode
- Stommel's model of western intensification
- Angular momentum operator
- Baroclinic instability
- Mechanical similarity
- Schönberg–Chandrasekhar limit
- Geopotential
- N-body simulation
- Celestial mechanics
- Vogt–Russell theorem
- Eddington luminosity
- Hill sphere
- Barnes–Hut simulation
- Vis-viva equation
- Euler's laws of motion
- Poinsot's ellipsoid
- Work–energy theorem
- Stellar dynamics
- Rigid body dynamics
- Conservation of momentum
- Variable-mass system
- Parker instability
- Cauchy momentum equation
- Bertrand's theorem
- F-plane
- Einstein radius
- Sitnikov problem
- Sverdrup balance
- Mechanical similarity
- Tidal locking
- Free-fall time
- Jacobi ellipsoid
- Lagrange points
- Two-body relaxation time
- Munk's wind-driven circulation model
- Parker spiral
- Centrifugal force
- Atwood machine
- Beta plane
- Newtonian limit
- Strong gravitational lensing
- Laplace–Runge–Lenz vector
- Einstein ring
- Cauchy's stress theorem
- Circular restricted three-body problem
- Newton's theorem of revolving orbits
- Gradient wind
- Euler free nutation
- Bullen parameter
- Goldreich–Tremaine theory of disk–satellite interaction
- Roche lobe
- Laplace tidal equations
- Fictitious force
Further reading
About this page
| Tag | 37Q4BTJMXW |
|---|---|
| URI | m2://37Q4BTJMXW |
| Kind | concept |
| Writing | W0 stub |
| MSC | 70A05, 70F10 |
| Uses | Classical mechanics, Velocity |
| Same as | |
| Changed | 3 November 2026 |
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What links here
Used by
- Inelastic collision
- Angular momentum
- Impulse
- Cyclic coordinate
- Newton's laws of motion
- Elastic collision
- Variable-mass system
- Laplace–Runge–Lenz vector