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:
... 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 ...
... 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 ...
... of a circulation cell in the mid-latitudes with air being deflected by the Coriolis force to create the prevailing westerly winds ... Late in the 19th century the full extent of the large scale interaction of pressure gradient force and deflecting force that in the end causes air masses to move ... By 1912, this deflecting force was named the Coriolis effect ...
... 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 Ad ...
... 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 squared, or kg·m·s−2 ... 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 gravitational field ...
More definitions of "force":
- (verb): Impose or thrust urgently, importunately, or inexorably.
- (verb): Urge or force (a person) to an action; constrain or motivate.
- (verb): Force into or from an action or state, either physically or metaphorically.
Synonyms: drive, ram
- (noun): A group of people having the power of effective action.
Example: "He joined forces with a band of adventurers"
- (noun): (of a law) having legal validity.
- (noun): One possessing or exercising power or influence or authority.
Example: "May the force be with you"
- (verb): Take by force.
- (verb): Do forcibly; exert force.
Example: "Don't force it!"
- (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"
- (verb): .
Example: "Move with force, "He pushed the table into a corner"
- (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
- (noun): Physical energy or intensity.
Example: "He hit with all the force he could muster"
Synonyms: forcefulness, strength
- (noun): Group of people willing to obey orders.
Example: "A public force is necessary to give security to the rights of citizens"
- (noun): (physics) the influence that produces a change in a physical quantity.
Example: "Force equals mass times acceleration"
Famous quotes containing the word force:
“Throwing open the door, she brings forth the veritable queen of all the souffles, that spreads its archangelic wings over the entire kitchen as it leaps upwards from the dish in which the force of gravity alone confines it.”
—Angela Carter (19401992)
“Without passion man is a mere latent force and possibility, like the flint which awaits the shock of the iron before it can give forth its spark.”
—Henri-Frédéric Amiel (18211881)
“He is asleep. He knows no longer the fatigue of the work of deciding, the work to finish. He sleeps, he has no longer to strain, to force himself, to require of himself that which he cannot do. He no longer bears the cross of that interior life which proscribes rest, distraction, weaknesshe sleeps and thinks no longer, he has no more duties or chores, no, no, and I, old and tired, oh! I envy that he sleeps and will soon die.”
—Albert Camus (19131960)