Velocity
[vəˈlɒsəti] or [və'lɑsəti]
Definition
(n.) Quickness of motion; swiftness; speed; celerity; rapidity; as, the velocity of wind; the velocity of a planet or comet in its orbit or course; the velocity of a cannon ball; the velocity of light.
(n.) Rate of motion; the relation of motion to time, measured by the number of units of space passed over by a moving body or point in a unit of time, usually the number of feet passed over in a second. See the Note under Speed.
Checker: Marty
Synonyms and Synonymous
n. Swiftness, speed, celerity, fleetness, quickness, rapidity.
Typist: Sol
Synonyms and Antonyms
SYN:Quickness, swiftness, speed, celerity, rapidity, fleetness
ANT:Slowness, sluggishness, tardiness, {[ientor]?}, languor, cumbrousness,inactivity
Checked by Fern
Definition
n. swiftness: speed: rate of change of position of a point per unit of time.—n. Velocim′eter an apparatus for measuring velocity.—Initial velocity the rate of movement of a body at starting esp. of a projectile.
Inputed by Franklin
Examples
- Rivers and pipes have their metres, so that now the velocity and volume of rivers and streams are measured and controlled, and floods prevented. William Henry Doolittle. Inventions in the Century.
- Fields, trees, and hedges, seemed to rush past them with the velocity of a whirlwind, so rapid was the pace at which they tore along. Charles Dickens. The Pickwick Papers.
- The speed with which sounds travels through the air, or its velocity, was first measured by noting the interval (54. Bertha M. Clark. General Science.
- Again, the experiments demonstrated that the force necessary to maintain at high velocity an apparatus consisting of planes and motors could be produced by means already available. Walter Libby. An Introduction to the History of Science.
- These jetties so concentrated the flow of waters into a narrow channel as to cause its increased velocity to wash out the mud and silt and deepen the channel. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Houses, gates, churches, haystacks, objects of every kind they shot by, with a velocity and noise like roaring waters suddenly let loose. Charles Dickens. The Pickwick Papers.
- I traveled with awful velocity for my errand was a race against time with death. Edgar Rice Burroughs. A Princess of Mars.
- Muzzle velocity, 2,900-foot seconds. Various. The Wonder Book of Knowledge.
- The greatest height to which water has been raised by the pumps that are one foot in diameter is 67·7 feet, with a velocity of 4,153 feet per minute. Frederick C. Bakewell. Great Facts.
- In 1823 Asa Arnold of Rhode Island invented a differential motion by which the velocity of the bobbin is kept uniform. William Henry Doolittle. Inventions in the Century.
- The velocity and certainty of Mr. Bucket's interpretation on all these heads is little short of miraculous. Charles Dickens. Bleak House.
- The cotton passed through the two pairs of rollers, and its extension depended entirely on the difference in the velocity of the revolutions of the two pairs. Rupert S. Holland. Historic Inventions.
- Atkinson,[445] What astonished the Allies most of all was the number and the velocity of the Republicans. H. G. Wells. The Outline of History_Being a Plain History of Life and Mankind.
- Muzzle velocity, 1,750-foot seconds. Various. The Wonder Book of Knowledge.
- The quantity of water which flows through the trough each second depends upon the dimensions of the trough and the velocity of the water. Bertha M. Clark. General Science.
- Aristotle had held that two moving bodies of the same sort and in the same medium have velocities in pr oportion to their weights. Walter Libby. An Introduction to the History of Science.
Checker: Wade