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:
“Nations do not think, they only feel. They get their feelings at second hand through their temperaments, not their brains. A nation can be brought—by force of circumstances, not argument—to reconcile itself to any kind of government or religion that can be devised; in time it will fit itself to the required conditions; later it will prefer them and will fiercely fight for them.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“The whole force of the respectable circles to which I belonged, that respectable circle which knew as I did not the value of security won, the slender chance of replacing it if lost or abandoned, was against me ...”
—Ida M. Tarbell (1857–1944)
“The affirmative class monopolize the homage of mankind. They originate and execute all the great feats. What a force was coiled up in the skull of Napoleon!”
—Ralph Waldo Emerson (1803–1882)