What are Weight Measurements?

What Does Measures of weight Mean

We explain what weight measurements are and what they are for. In addition, other less common weight measurements.

Weight measurements are used to calculate the amount of matter in a body.

What are weight measurements?

Weight measurements are the units conventionally used to calculate the weight of a body , that is, the amount of matter in it.

 Although this magnitude is more commonly known as "weight," we are actually talking about mass ; since the first will be the extent to which, under the action of gravity , the object prints a force on the surface on which it rests and, therefore, it is measured in Newtons (N).

The mass , however, responds to the amount of matter in an object and to measure conventional measures gram (g) per kilogram (kg) are used, among others.

The measure of weight to be used, in any case, will depend on many scientific and cultural variables, so that in some nations one system is used and in others another is used . To carry out measurements of this type, in any case, a balance is used: at one end or pan is placed the object and on the other side loads equivalent to its weight.

According to the International System, the standard measure of weight is the gram (g) , taken from the decimal metric system together with its extensive list of multiples: decagram (Dg), hectogram (Hg) and kilogram (Kg) that represent 10, 100 and 1000 net grams respectively.

Below, however, there are also known submultiples: decigram (dg), centigram (cg) and milligram (mg). One gram was once defined as the mass of one cubic centimeter of water to 3.98 ° C of temperature .

One measure of weight can be converted into another thanks to a more or less stable and accepted conversion factor.

See also: Specific gravity

Other weight measurements

The ounce is used for that which weighs less than a pound.

Other weight measurements are also known, such as the following:

  • Metric quintal. It was an old unit of weight in Spain, equivalent to 100 Castilian pounds (about 46 kg). However, once incorporated into the metric decimal system, it was rounded to 50 kg in many places, and finally understood as a quintal metric, equivalent to 100 kg. Formerly it had as a fraction the arroba, a quarter of a quintal (11.5 kg), but today it is in frank disuse.
  • Ton. Its name comes from the old French word for “barrel” and, although it is not part of the International System , it is accepted as equivalent to 1000 kilograms (one million grams). It is also known as a megagram .
  • Libra. It is the measure of weight of the Anglo-Saxon system, although it was used as early as the Roman Empire. Over time it has responded to various values, among which the avoirdupois pound ended up prevailing , equivalent to 0.45359 kg (453.59237 g). There is also the troy pound , used today only in goldsmiths and jewelery, and which is equivalent to 373.2417216 grams.
  • Ounce. It is another traditional measure of weight, it was used especially for what weighed less than a pound, since initially it was equivalent to 1/12 pound. Later it was converted and today there is an avoirdupois ounce equivalent to 28.349523125 grams; and the troy ounce (used only in jewelry) equivalent to 31.1034768 grams.
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