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:
“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 weight of its body
cleverly suspended
by its own wings,
the bee
sips at the bud
of the night-blooming jasmine,
opening it,
greedy for its juice.”
—Hla Stavhana (c. 50 A.D.)
“I falter where I firmly trod,
And falling with my weight of cares
Upon the great world’s altar-stairs
That slope thro’ darkness up to God,”
—Alfred Tennyson (1809–1892)