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:
“All, or the greatest part of men that have aspired to riches or power, have attained thereunto either by force or fraud, and what they have by craft or cruelty gained, to cover the foulness of their fact, they call purchase, as a name more honest. Howsoever, he that for want of will or wit useth not those means, must rest in servitude and poverty.”
—Sir Walter Raleigh (1552–1618)
“The force of the blow depends on the resistance. It is sometimes better not to struggle against temptation. Either fly or yield at once.”
—F.H. (Francis Herbert)
“In the new science of the twenty-first century, not physical force but spiritual force will lead the way. Mental and spiritual gifts will be more in demand than gifts of a physical nature. Extrasensory perception will take precedence over sensory perception. And in this sphere woman will again predominate.”
—Elizabeth Gould Davis (b. 1910)