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 squared, or kg·m·s−2 ... 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 of 9.80665 m·s−2 ...
... cell in the mid-latitudes 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 ...
... 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 ...
... is composed of the imperial crown mounted on a circle featuring the words Royal Australian Air Force, beneath which scroll work displays the Latin motto (shar ...
... The life force was a combined clock and progress meter used to track the energy status of the dungeoneer (the main contestant) ... taking too long (Treguard 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 ...
More definitions of "force":
- (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!"
- (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): 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): (physics) the influence that produces a change in a physical quantity.
Example: "Force equals mass times acceleration"
- (verb): Take by force.
- (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): One possessing or exercising power or influence or authority.
Example: "May the force be with you"
- (verb): .
Example: "Move with force, "He pushed the table into a corner"
- (verb): Force into or from an action or state, either physically or metaphorically.
Synonyms: drive, ram
- (noun): Physical energy or intensity.
Example: "He hit with all the force he could muster"
Synonyms: forcefulness, strength
- (verb): Impose or thrust urgently, importunately, or inexorably.
- (verb): Urge or force (a person) to an action; constrain or motivate.
- (noun): Group of people willing to obey orders.
Example: "A public force is necessary to give security to the rights of citizens"
Famous quotes containing the word force:
“Do not shut up the young people against their will in a pew, and force the children to ask them questions for an hour against their will.”
—Ralph Waldo Emerson (18031882)
“America does not concern itself now with Impressionism. We own no involved philosophy. The psyche of the land is to be found in its movement. It is to be felt as a dramatic force of energy and vitality. We move; we do not stand still. We have not yet arrived at the stock-taking stage.”
—Martha Graham (18941991)
“Americans have internalized the value that mothers of young children should be mothers first and foremost, and not paid workers. The result is that a substantial amount of confusion, ambivalence, guilt, and anxiety is experienced by working mothers. Our cultural expectations of mother and realities of female participation in the labor force are directly contradictory.”
—Ruth E. Zambrana, U.S. researcher, M. Hurst, and R.L. Hite. The Working Mother in Contemporary Perspectives: A Review of Literature, Pediatrics (December 1979)