In physics, a force is any influence that causes an object to undergo a certain change, either concerning its movement, direction, or geometrical construction. It is measured with the SI unit of newtons and represented by the symbol F. In other words, a force is that which can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate, or which can cause a flexible object to deform. Force can also be described by intuitive concepts such as a push or pull. A force has both magnitude and direction, making it a vector quantity.
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Some articles on force:
... The SI unit of force is the newton (symbol N), which is the force required to accelerate a one kilogram mass at a rate of one meter per second ... The corresponding CGS unit is the dyne, the force required to accelerate a one gram mass by one centimeter per second squared, or g·cm·s−2 ... The gravitational foot-pound-second English unit of force is the pound-force (lbf), defined as the force exerted by gravity on a pound-mass in the standard ...
... The life force was a combined clock and progress meter used to track the energy status of the dungeoneer (the main contestant) ... would often tell the team "You're wasting Life Force"), taking "damage" through being attacked by monsters or obstacles, taking the wrong route or making bad decisions ... In the first five series, the life force was a computer animated image of an adventurer wearing a helmet ...
... A fluid flowing past the surface of a body exerts surface force on it ... Lift is the component of this force that is perpendicular to the oncoming flow direction ... It contrasts with the drag force, which is the component of the surface force parallel to the flow direction ...
... cell in the mid-latitudes with air being deflected by the Coriolis force to create the prevailing westerly winds ... large scale interaction of pressure gradient force and deflecting force that in the end causes air masses to move along isobars was understood ... By 1912, this deflecting force was named the Coriolis effect ...
... composed of the imperial crown mounted on a circle featuring the words Royal Australian Air Force, beneath which scroll work displays the Latin motto (shared with the Royal Air Force) Per Ardua ...
More definitions of "force":
- (verb): Take by force.
- (verb): Force into or from an action or state, either physically or metaphorically.
Synonyms: drive, ram
- (noun): (of a law) having legal validity.
- (noun): An act of aggression (as one against a person who resists).
Example: "He may accomplish by craft in the long run what he cannot do by force and violence in the short one"
- (noun): A group of people having the power of effective action.
Example: "He joined forces with a band of adventurers"
- (noun): A unit that is part of some military service.
Example: "He sent Caesar a force of six thousand men"
Synonyms: military unit, military force, military group
- (verb): Impose or thrust urgently, importunately, or inexorably.
- (verb): Do forcibly; exert force.
Example: "Don't force it!"
- (noun): Physical energy or intensity.
Example: "He hit with all the force he could muster"
Synonyms: forcefulness, strength
- (verb): Urge or force (a person) to an action; constrain or motivate.
- (noun): One possessing or exercising power or influence or authority.
Example: "May the force be with you"
- (noun): (physics) the influence that produces a change in a physical quantity.
Example: "Force equals mass times acceleration"
- (verb): .
Example: "Move with force, "He pushed the table into a corner"
- (noun): A powerful effect or influence.
Example: "The force of his eloquence easily persuaded them"
Famous quotes containing the word force:
“Rich are the sea-gods:Mwho gives gifts but they?
They grope the sea for pearls, but more than pearls:
They pluck Force thence, and give it to the wise.
Every wave is wealth to Daedalus,
Wealth to the cunning artist who can work
This matchless strength. Where shall he find, O waves!
A load your Atlas shoulders cannot lift?”
—Ralph Waldo Emerson (18031882)
“Many try to force the past to change.”
—Mason Cooley (b. 1927)
“He saw, he wishd, and to the prize aspird.
Resolvd to win, he meditates the way,
By force to ravish, or by fraud betray;
For when success a lovers toil attends,
Few ask, if fraud or force attaind his ends.”
—Alexander Pope (16881744)