Force

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:

    So doth, so is Religion; and this blind-
    ness too much light breeds; but unmoved thou
    Of force must one, and forc’d but one allow;
    And the right; ask thy father which is she,
    let him ask his; though truth and falsehood be
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    Every man should stand for a force which is perfectly irresistible.
    Henry David Thoreau (1817–1862)