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 gravitational field ...
... 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) ... 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 ...
... with air being deflected by the Coriolis force to create the prevailing westerly winds ... of the 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 ...
... 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 Astra ...
More definitions of "force":
- (verb): Impose or thrust urgently, importunately, or inexorably.
- (noun): One possessing or exercising power or influence or authority.
Example: "May the force be with you"
- (noun): A group of people having the power of effective action.
Example: "He joined forces with a band of adventurers"
- (noun): Group of people willing to obey orders.
Example: "A public force is necessary to give security to the rights of citizens"
- (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): 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): (of a law) having legal validity.
- (noun): A powerful effect or influence.
Example: "The force of his eloquence easily persuaded them"
- (verb): Do forcibly; exert force.
Example: "Don't force it!"
- (verb): Force into or from an action or state, either physically or metaphorically.
Synonyms: drive, ram
- (noun): (physics) the influence that produces a change in a physical quantity.
Example: "Force equals mass times acceleration"
- (verb): Take by force.
Famous quotes containing the word force:
“If we wish to know the force of human genius, we should read Shakespeare. If we wish to see the insignificance of human learning, we may study his commentators.”
—William Hazlitt (17781830)
“The mind is the terriblest force in the world, father,
Because, in chief, it, only, can defend
Against itself. At its mercy, we depend
—Wallace Stevens (18791955)
“The torment of human frustration, whatever its immediate cause, is the knowledge that the self is in prison, its vital force and mangled mind leaking away in lonely, wasteful self-conflict.”
—Elizabeth Drew (18871965)