velocity
Aimed motion rate
Velocity is speed, especially in a particular direction.
In physics, velocity is a vector quantity—speed plus direction—distinguishing it from mere rate of movement.
The word often emphasizes rapidity or momentum: The startup achieved remarkable velocity in its first year.
In baseball, a pitcher's velocity is how fast they throw: He's lost some velocity on his fastball.
Rate of motion
- rateMeasured speed or charge
- paceSpeed of movement
- movementChange in position
- locomotionAbility to travel independently
thrust · propulsion · surge · transit · swift · rapid · hurtle · dart
Rate velocity changes
- momentumProduct of mass, velocity
- vectorQuantity with direction
- displacementRemoval from usual location
- kinematicsStudy of movement itself
inertia · force · mass · trajectory · dynamics · friction · drag · impulse
Curved celestial path
- launchSet into motion
- spacecraftVehicle for outer space
- gravitationalRelating to mass-based attraction
- rocketPropulsion-driven spacecraft
thrust · propulsion · satellite · delta-v · trajectory · interstellar · lunar · slingshot
Vehicle velocity display
- radarRadio-wave object detection
- dopplerFrequency change from motion
- knotsSecured loops in rope
- machAirspeed-to-soundspeed ratio
fps · mph · kph · tachometer · chronograph · anemometer · calibration · units
Unimpeded downward motion
- skydivingRecreational freefall from aircraft
- parachuteDrag-creating descent device
- dragResistance through fluid
- air resistanceForce opposing atmospheric movement
descent · gravitational · aerodynamics · steady-state · equilibrium · plummet · diving · limit
Unbroken forward movement
- viscosityFluid's flow resistance
- pressureForce upon contact
- aerodynamicsPhysics of air motion
- hydrodynamicsScience of liquid motion
streamlines · turbulence · laminar · gradient · current · vortex · Reynolds · Bernoulli
speed
Rate of motion
locomotion · thrust · propulsion · surge · transit · swift · rapid · hurtle · dart · streak
acceleration
Rate velocity changes
- momentumProduct of mass, velocity
- vectorQuantity with direction
- displacementRemoval from usual location
kinematics · inertia · force · mass · trajectory · dynamics · friction · drag · impulse · energy
orbit
Curved celestial path
- launchSet into motion
- spacecraftVehicle for outer space
- gravitationalRelating to mass-based attraction
rocket · thrust · propulsion · satellite · delta-v · trajectory · interstellar · lunar · slingshot · astronautics
speedometer
Vehicle velocity display
mach · fps · mph · kph · tachometer · chronograph · anemometer · calibration · units · reading
freefall
Unimpeded downward motion
- skydivingRecreational freefall from aircraft
- parachuteDrag-creating descent device
- dragResistance through fluid
air resistance · descent · gravitational · aerodynamics · steady-state · equilibrium · plummet · diving · limit · maximum
flow
Unbroken forward movement
- viscosityFluid's flow resistance
- pressureForce upon contact
- aerodynamicsPhysics of air motion
hydrodynamics · streamlines · turbulence · laminar · gradient · current · vortex · Reynolds · Bernoulli · pipe
- measurementsheight, stature, meters, depth, pound
- Physical Sciencesphysics, chemistry, astronomy, geology, meteorology
- roboticsrobot, android, humanoid, robotic arm, servo
- GPSsatellite, GPS navigation, GPS tracking, latitude, GPS receivers
- classical physicsNewton, Newton's laws, Newtonian physics, laws of motion, force
- Physics quantitiesacceleration, amplitude, area, current, distance
velocityslowness
Absence of quickness
sluggishness · pokiness · leisureliness · languidness · languor
velocitystillness
Complete lack of motion
immobility · motionlessness · stasis · rest · inertia
velocitylethargy
Abnormal drowsiness and apathy
passivity · inaction · hesitation · reluctance · procrastination
- terminal velocityMaximum speed during freefall
- escape velocitySpeed to overcome gravity
- high velocityRapid movement rate
- exit velocitySpeed upon departure
- muzzle velocityProjectile speed at barrel-end
- escape velocitiesSpeeds needed to overcome gravity