Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ρ (the lower case Greek letter rho), …

Dec 10, 2025 · Density, mass per unit volume of a substance. The formula for density is d=M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of …

This lesson explains density as the physical property in chemistry that quantifies how mass is concentrated in a given volume. Gain a comfort using the formula D = m/V and explore how …

密度是一个较为普遍的概念，常见的物理量有 质量密度 、 电荷密度 、 能流密度 等。 绝大多数情况下密度默认指的是质量密度。 质量密度ρ的计算公式是ρ=m·V-1（1），其中m是质量，V是 …

必应词典为您提供density的释义，美 [ˈdensəti]，英 ['densəti]，n. 密度；浓度；密集；稠密； 网络释义： 比重；黑度；强度；

DENSITY翻译：密集, （人口等的）密度, 物质, （物质的）密度。 了解更多。

Learn about density as the relationship between mass and volume and how to calculate and compare the densities of different materials. Explore how density explains why some objects …

Density is a measure of a distributed mass per unit volume for porous solids or particle suspensions. As well as the speed of the fluid and the average particle size, the erosion rate …

In this tutorial, you will learn what density is, & how to calculate it - along with the units, formula and equation for density.

密度 是指一物質單位 體積 下的 質量，常用希臘字母 ρ 或是英文字母 D （Density）表示。 在數學上，密度定義為質量除以體積的商 。