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acceleration    音标拼音: [,æks,ɛlɚ'eʃən]
n. 加速,促进,加速度

加速,促进,加速度

acceleration
加速时间

acceleration
加速

acceleration
n 1: an increase in rate of change; "modern science caused an
acceleration of cultural change" [ant: {deceleration},
{retardation}, {slowing}]
2: the act of accelerating; increasing the speed [synonym:
{acceleration}, {quickening}, {speedup}] [ant:
{deceleration}]
3: (physics) a rate of increase of velocity [ant:
{deceleration}]

Acceleration \Ac*cel`er*a"tion\, n. [L. acceleratio: cf. F.
acc['e]l['e]ration.]
The act of accelerating, or the state of being accelerated;
increase of motion or action; as, a falling body moves toward
the earth with an acceleration of velocity; -- opposed to
{retardation}.
[1913 Webster]

A period of social improvement, or of intellectual
advancement, contains within itself a principle of
acceleration. --I. Taylor.
[1913 Webster] (Astr. & Physics.)

{Acceleration of the moon}, the increase of the moon's mean
motion in its orbit, in consequence of which its period of
revolution is now shorter than in ancient times.

{Acceleration} and {retardation of the tides}. See {Priming
of the tides}, under {Priming}.

{Diurnal acceleration of the fixed stars}, the amount by
which their apparent diurnal motion exceeds that of the
sun, in consequence of which they daily come to the
meridian of any place about three minutes fifty-six
seconds of solar time earlier than on the day preceding.


{Acceleration of the planets}, the increasing velocity of
their motion, in proceeding from the apogee to the perigee
of their orbits.
[1913 Webster]

40 Moby Thesaurus words for "acceleration":
accelerando, aggravation, beefing-up, blowing up, blowup,
concentration, condensation, consolidation, deepening, double time,
double-quick, double-quick time, drive, enhancement, exacerbation,
exaggeration, explosion, festination, forced march, forwarding,
getaway, hastening, heating-up, heightening, hurrying, impetus,
information explosion, intensification, magnification, pickup,
population explosion, quickening, redoubling, reinforcement,
speeding, speedup, step-up, strengthening, thrust, tightening



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  • Acceleration - Wikipedia
    In mechanics, acceleration is the rate of change of the velocity of an object with respect to time Acceleration is one of several components of kinematics, the study of motion Accelerations are vector quantities (in that they have magnitude and direction)
  • Acceleration | Definition, Facts, Units | Britannica
    Acceleration, rate at which velocity changes with time, in terms of both speed and direction A point or an object moving in a straight line is accelerated if it speeds up or slows down Motion on a circle is accelerated even if the speed is constant, because the direction is continually changing
  • Acceleration: Definition, Formula, and Solved Problems - Science Facts
    If the object moves with a constant velocity, then Δv = 0, and its acceleration is zero In the above equation, acceleration is the change in velocity over the change in time It does not mean that if the velocity is high, the acceleration is high, or if the velocity is low, the acceleration is low
  • Acceleration - The Physics Classroom
    Acceleration is the rate at which they change their velocity Acceleration is a vector quantity; that is, it has a direction associated with it The direction of the acceleration depends upon which direction the object is moving and whether it is speeding up or slowing down
  • What Is Acceleration? - BYJUS
    Tangential acceleration is defined as the rate of change of the tangential velocity of a particle in a circular orbit There are 3 possible values for tangential acceleration First, when the magnitude of the velocity vector increases with time, tangential acceleration is greater than zero
  • 2. 4: Acceleration - Physics LibreTexts
    Acceleration is the rate at which velocity changes In symbols, average acceleration is a= Δv Δt The SI unit for acceleration is m s² Acceleration is a vector, and thus has a …
  • Acceleration Calculator | Definition | Formula
    If you're asking yourself what is acceleration, what is the acceleration formula, or what are the units of acceleration, keep reading, and you'll learn how to find acceleration Acceleration is strictly related to the motion of an object, and every moving object possesses specific energy
  • Acceleration – The Physics Hypertextbook
    Acceleration occurs anytime an object's speed increases or decreases, or it changes direction Much like velocity, there are two kinds of acceleration: average and instantaneous Average acceleration is determined over a "long" time interval
  • What is acceleration? - Khan Academy
    Acceleration is the name we give to any process where the velocity changes Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both
  • Acceleration - Math is Fun
    Acceleration is how fast velocity changes: Speeding up Slowing down (also called deceleration) Changing direction





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