deceleration
Gradual velocity decrease
Deceleration is the act of slowing down, the opposite of acceleration.
The term appears in physics and engineering contexts: The spacecraft's deceleration began as it approached the planet.
It also describes any reduction in rate or pace: economic deceleration, the deceleration of population growth.
Reduction in pace
- decreaseBecome or make smaller
- declineDecrease or refuse
- dropFall or release
- lesseningBecoming reduced in degree
slackening · tapering · waning · diminution · downturn · ebb · subsidence · letup
Slowing or delay
- dragResistance through fluid
- frictionResistance between touching surfaces
- resistanceCapacity to withstand force
- airbrakePressure-driven stopping device
parachute · regenerative · antilock · ABS · hydraulic · downshift · coasting · spoiler
Resistance to altered motion
- momentumProduct of mass, velocity
- velocityDirected rate of motion
- forceStrength or compulsion
- massQuantity of matter
g-force · impulse · vector · jerk · damping · attenuation · coefficient · Newton
Power flow controller
- modulationVarying signals to transmit
- regulationOfficial rules governing conduct
- governorState's chief executive
- adjustmentAlteration to improve fit
calibration · limiting · constraint · fine-tuning · feedback · proportional · gradual · managed
Vehicle collision cushion
- seatbeltVehicle passenger restraint
- headrestPadded seat extension for neck
- soft-landingControlled, gradual descent
- cushioningSoftening force or fall
slowdown
Reduction in pace
lessening · slackening · tapering · waning · diminution · downturn · ebb · subsidence · letup · easing
retardation
Slowing or delay
- dragResistance through fluid
- frictionResistance between touching surfaces
- resistanceCapacity to withstand force
airbrake · parachute · regenerative · antilock · ABS · hydraulic · downshift · coasting · spoiler · flaps
inertia
Resistance to altered motion
mass · g-force · impulse · vector · jerk · damping · attenuation · coefficient · Newton · kinematics
throttle
Power flow controller
- modulationVarying signals to transmit
- regulationOfficial rules governing conduct
- governorState's chief executive
adjustment · calibration · limiting · constraint · fine-tuning · feedback · proportional · gradual · managed · calculated
airbag
Vehicle collision cushion
- seatbeltVehicle passenger restraint
- headrestPadded seat extension for neck
- soft-landingControlled, gradual descent
- athletic skillsbalance, coordination, agility, reflexes, reaction time
- reentryreentry, reentry vehicle, reentry capsule, heat shield, ablative
- motionmotion, movement, velocity, speed, momentum
- aviationaircraft, airports, flying, flight, airplane
- cyclingbikes, bicycles, cycling, cyclist, cyclists
- mechanicsforce, turning, rotation, momentum, velocity
decelerationacceleration
Rate velocity changes
speeding up · speedup · quickening · speed-up · hastening