Force
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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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 (1778–1830)
“It is necessary to turn political crisis into armed crisis by performing violent actions that will force those in power to transform the military situation into a political situation. That will alienate the masses, who, from then on, will revolt against the army and the police and blame them for this state of things.”
—Carlos Marighella (d. 1969)
“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 (1894–1991)