What is 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.

Read more about Weight.

Some articles on weight:

Egg White - Composition
... The egg white is about two-thirds of the total egg's weight out of its shell, with nearly 92% of that weight coming from water ... The remaining weight of the egg white comes from protein, trace minerals, fatty material, vitamins, and glucose ...
Jungle Carbine - Military Service
... body and the barrel, the bolt knob drilled out, woodwork cut down to reduce weight and had other new features like a flash suppressor and a rubber buttpad to help absorb the increased recoil ... the "Jungle Carbine" nickname) and was popular with troops because of its light weight (compared to the SMLE and Lee-Enfield No ... about the increased recoil due to the lighter weight and shorter barrel ...
Equine Forelimb Anatomy
... During locomotion, the forelimb functions primarily for weight-bearing rather than propulsion and supports the forehand of the horse ... the standing horse, the forelimbs together support approximately 60% of the weight of the horse, and this pattern is carried over to locomotion, where the ... As the horse moves, increasing impulsion shifts the horse's weight to the hindquarters ...
Weight Function
... A weight function is a mathematical device used when performing a sum, integral, or average to give some elements more "weight" or influence on the result than other elements in the same set ... Weight functions can be employed in both discrete and continuous settings ...
Boxing Training - Training - Weight
... other fighting sports, categorizes its competitors into weight classes ... before weigh-in so that they can be bumped down a weight class ... forced to stop eating solid food up to three days before the weigh-in ceremony, in order to make weight for the fight ...

More definitions of "weight":

  • (verb): Present with a bias.
    Synonyms: slant, angle
  • (noun): An artifact that is heavy.
  • (noun): A unit used to measure weight.
    Synonyms: weight unit
  • (noun): The vertical force exerted by a mass as a result of gravity.
  • (noun): An oppressive feeling of heavy force.
    Example: "Bowed down by the weight of responsibility"
  • (noun): The relative importance granted to something.
    Example: "His opinion carries great weight"
  • (noun): (statistics) a coefficient assigned to elements of a frequency distribution in order to represent their relative importance.
    Synonyms: weighting
  • (noun): Sports equipment used in calisthenic exercises and weightlifting; a weight that is not attached to anything and is raised and lowered by use of the hands and arms.
    Synonyms: free weight, exercising weight
  • (noun): A system of units used to express the weight of something.
    Synonyms: system of weights

Famous quotes containing the word weight:

    But I saw the little-Ant men as they ran
    Carrying the world’s weight of the world’s filth
    And the filth in the heart of Man—
    Compressed till those lusts and greeds had a greater heat
    than that of the Sun.
    Dame Edith Sitwell (1887–1964)

    We come into the world laden with the weight of an infinite necessity.
    Albert Camus (1913–1960)

    Not the less does nature continue to fill the heart of youth with suggestions of his enthusiasm, and there are now men,—if indeed I can speak in the plural number,—more exactly, I will say, I have just been conversing with one man, to whom no weight of adverse experience will make it for a moment appear impossible, that thousands of human beings might exercise towards each other the grandest and simplest of sentiments, as well as a knot of friends, or a pair of lovers.
    Ralph Waldo Emerson (1803–1882)