Area density

Area density

:"For computer memory comparisons, see computer storage density. For other meanings, see Density (disambiguation)"

The area density of a two-dimensional object is calculated as the mass per unit area. The SI derived unit is: kilogram per square metre (kg m−2).

It can be calculated as:

: ho_A = frac {M} {A}

or

: ho_A = ho cdot l

where:

Usage

The area density is often used to describe the thickness of paper, e.g. 80g/m2 is very common. It is also an important quantity for the absorption of radiation.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • area density — plotinis tankis statusas T sritis Standartizacija ir metrologija apibrėžtis Apibrėžtį žr. priede. priedas( ai) Grafinis formatas atitikmenys: angl. area density; areic mass; surface density vok. Flächendichte, f; Oberflächendichte, f rus.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • area density — plotinis tankis statusas T sritis Standartizacija ir metrologija apibrėžtis Dydžio kiekis vienetiniame (fizikinės erdvės) paviršiaus (hiperpaviršiaus) plote. atitikmenys: angl. area density; areic mass; surface density vok. Flächendichte, f;… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • per-unit-area density — savitasis paviršinis tankis statusas T sritis radioelektronika atitikmenys: angl. per unit area density vok. spezifische Oberflächendichte, f rus. удельная поверхностная плотность, f pranc. densité spécifique en surface, f …   Radioelektronikos terminų žodynas

  • Density (disambiguation) — Density and dense usually refer to a measure of how much of some entity is within a fixed amount of space. Types of density include: In physics, density of mass: Density, mass per volume Area density or surface density, mass over a (two… …   Wikipedia

  • Density gradient — is a spatial variation in density over an area. The term is used in the natural sciences to describe varying density of matter, but can apply to any quantity whose density can be measured. [1] [2] Contents 1 Aerodynamics 2 …   Wikipedia

  • Área metropolitana de Madrid — Área metropolitana de Madrid. El Área metropolitana de Madrid se encuentra en el centro de la península Ibérica en torno a su ciudad principal: Madrid. Es el área metropolitana más poblada de España y la tercera de la Unión Europea, por detrás de …   Wikipedia Español

  • Area codes 416 and 647 — Area code 416 is one of the original 86 area codes from 1947, and currently serves the single rate centre of Toronto, Ontario. It has been split twice: the western portion of 416 became area code 519 in 1953, and in 1993 the remaining portion of… …   Wikipedia

  • Área metropolitana de Haifa — Mayor ciudad Haifa Otras ciudades Qiryat Bialik, Qiryat Yam, Qiryat Motzkin, Qiryat Atta, Tirat Carmel, Nesher, Tamra, Carmiel, Nahariya Pobl …   Wikipedia Español

  • density — [den′sə tē] n. pl. densities [Fr densité < L densitas] 1. the quality or condition of being dense; specif., a) thickness; compactness b) stupidity c) Photog. degree of opacity of a negative 2. quantity or number per unit, as of area …   English World dictionary

  • density — ► NOUN (pl. densities) 1) the degree of compactness of a substance; mass per unit volume. 2) the quantity of people or things in a given area or space …   English terms dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”