Weight
In science and engineering, the weight of an object is the force on the object due to gravity. Its magnitude (a scalar quantity), often denoted by an italic letter W, is the product of the mass m of the object and the magnitude of the local gravitational acceleration g; thus: W = mg. When considered a vector, weight is often denoted by a bold letter W. The unit of measurement for weight is that of force, which in the International System of Units (SI) is the newton. For example, an object with a mass of one kilogram has a weight of about 9.8 newtons on the surface of the Earth, about one-sixth as much on the Moon, and zero when in deep space far away from all bodies imparting gravitational influence.
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Famous quotes containing the word weight:
“The only thing of weight that can be said against modern honour is that it is directly opposite to religion. The one bids you bear injuries with patience, the other tells you if you don’t resent them, you are not fit to live.”
—Bernard Mandeville (1670–1733)
“There is little premium in poetry in a world that thinks of Pound and Whitman as a weight and a sampler, not an Ezra, a Walt, a thing of beauty, a joy forever.”
—Anna Quindlen (b. 1952)
“The hurt is not enough:
I long for weight and strength
To feel the earth as rough
To all my length.”
—Robert Frost (1874–1963)