gravitational force
Mass attracts mass
Gravitational force is the attractive pull that objects with mass exert on one another, one of the four fundamental forces of nature.
It keeps planets in orbit around stars, holds galaxies together, and gives objects weight on Earth.
The force increases with mass and decreases with distance—you feel Earth's pull strongly because of its enormous mass and proximity, while the moon's weaker gravity creates ocean tides.
The gravitational force between the two bodies was calculated using Newton's equation.
Quantity of matter
- accelerationRate velocity changes
- NewtonFamous scientific surname
- EinsteinByword for genius
- relativityHow observers differ
space-time · curvature · graviton · singularity · black hole · cosmology · astrophysics · lensing
Quantity of matter
Differential gravitational pull across bodies
- freefallUnimpeded downward motion
- weightlessnessAbsence of apparent mass
- time dilationClocks slow at speed
- attractionPull toward something
falling · terminal velocity · microgravity · zero-g · redshift · spaghettification · tides · well
Orbiting celestial body
- orbitCurved celestial path
- revolutionViolent governmental overthrow
- trajectoryPath of moving object
- ellipseConic section curve
planetary motion · moon · aphelion · perihelion · geostationary · spacecraft · velocity · inclination
mass
Quantity of matter
- accelerationRate velocity changes
- NewtonFamous scientific surname
- EinsteinByword for genius
relativity · space-time · curvature · graviton · singularity · black hole · cosmology · astrophysics · lensing · general relativity
mass
Quantity of matter
scale · gravimeter · weighing · pendulum
tidal forces
Differential gravitational pull across bodies
- freefallUnimpeded downward motion
- weightlessnessAbsence of apparent mass
- time dilationClocks slow at speed
attraction · falling · terminal velocity · microgravity · zero-g · redshift · spaghettification · tides · well
satellite
Orbiting celestial body
- orbitCurved celestial path
- revolutionViolent governmental overthrow
- trajectoryPath of moving object
ellipse · planetary motion · moon · aphelion · perihelion · geostationary · spacecraft · velocity · inclination · escape velocity
- gravitygraviton, escape velocity, gravimeter, weightlessness, gravimetry
- forceselectromagnetism, thrust, drag, friction, push
- Physics quantitiesacceleration, amplitude, area, current, distance
- Fundamental Physicselectromagnetism, fundamental forces, photon, gluon, W boson
- conservative forces
- mechanicsturning, rotation, momentum, velocity, acceleration
gravitational forceelectromagnetic force
Charge-mediated fundamental interaction
electromagnetism · strong nuclear force · strong force · weak force · electric force
gravitational forcerepulsion
Disgust or pushing-away force
dark energy · antigravity · anti-gravity · centrifugal force
gravitational forceescape velocity
Speed to overcome gravity
centrifugal force · thrust · propulsion · lift · buoyancy
force, gravity, gravitate, gravitation, gravitating, gravitated, antigravity, gravitational, gravitons