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:
“Thy fair virtue’s force perforce doth move me
On the first view to say, to swear, I love thee.”
—William Shakespeare (1564–1616)
“As a final instance of the force of limitations in the development of concentration, I must mention that beautiful creature, Helen Keller, whom I have known for these many years. I am filled with wonder of her knowledge, acquired because shut out from all distraction. If I could have been deaf, dumb, and blind I also might have arrived at something.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“The sure way of judging whether our first thoughts are judicious, is to sleep on them. If they appear of the same force the next morning as they did over night, and if good nature ratifies what good sense approves, we may be pretty sure we are in the right.”
—Horace Walpole (1717–1797)