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:
“Now mark me how I will undo myself.
I give this heavy weight from off my head,
And this unwieldy sceptre from my hand,
The pride of kingly sway from out my heart.
With mine own tears I wash away my balm,
With mine own hands I give away my crown.”
—William Shakespeare (1564–1616)
“as his weight wilts
and he is on a porch
that won’t hold my arms,
or the legs of the race run
forwards, or the film
played backwards on his grandson’s eyes.”
—Michael S. Harper (b. 1938)
“I, being born a woman and distressed
By all the needs and notions of my kind,
Am urged by your propinquity to find
Your person fair, and feel a certain zest
To bear your body’s weight upon my breast:”
—Edna St. Vincent Millay (1892–1950)