Question

what is density? define​

Answer 1

Density is the measurement of how tightly a material is packed together. It is defined as the mass per unit volume. Density Symbol: D or ρ Density Formula: ρ = m/V, where ρ is the density, m is the mass of the object and V is the volume of the object.

Answer 2

Answer:

Density: Density is defined as the mass per unit volume. Density is depend on the property that how tightly the particles are packed in a substance.

Density is given by the below mentioned formula:

• ${\small{\underline{\boxed{\pmb{\sf{Density \: = \dfrac{Mass}{Volume}}}}}}}$

Mathematically it can be written as,

${\pmb{\sf{\rho \: = \dfrac{m}{v}}}}$

Also can be written as,

${\pmb{\sf{D \: = \dfrac{m}{v}}}}$

Where, D denotes density, m denotes mass and v denotes volume.

Relationship between density, mass and volume is mentioned below:

$\begin{gathered}\boxed{\begin{array}{c}\\ {\pmb{\sf{Some \: formulas!}}} \\ \\ \sf \star \: Density \: = \dfrac{Mass}{Volume} \\ \\ \sf \star \: Volume \: = \dfrac{Mass}{Density} \\ \\ \sf \star \: Density \times Volume = Mass \end{array}}\end{gathered}$

The SI unit of density = kg/m³

The CGS unit of density = g/cm³

Have you ever listen about relative density!? What is it!?

Relative density is defined as the density of substance per density of water.

It can be expressed as,

• ${\small{\underline{\boxed{\pmb{\sf{Relative \: density \: = \dfrac{Density \: of \: substance}{Density \: of \: water}}}}}}}$