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:
“March indefatigably on,
And for the last effect
Still keep thy Sword erect:
Besides the force it has to fright
The Spirits of the shady Night;
The same Arts that did gain
A Pow’r must it maintain.”
—Andrew Marvell (1621–1678)
“Men are not governed by justice, but by law or persuasion. When they refuse to be governed by law or persuasion, they have to be governed by force or fraud, or both.”
—George Bernard Shaw (1856–1950)
“...here he is, fully alive, and it is hard to picture him fully dead. Death is thirty-three hours away and here we are talking about the brain size of birds and bloodhounds and hunting in the woods. You can only attend to death for so long before the life force sucks you right in again.”
—Helen Prejean (b. 1940)