Question

A rock occupies a volume of 20 cm3 and has a mass of 100 g. Find the density of Answer:_____________ this rock.

Answer 1

The density of rock = 5 g/cm³

Further explanation

Given

Volume of rock=20 cm³

Mass = 100 g

Required

Density

Solution

Density is a quantity derived from the mass and volume

Density is the ratio of mass per unit volume

The unit of density can be expressed in g/cm³ or kg/m³

Density formula:

`\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}`

ρ = density

m = mass

v = volume

Input given values in formula

`\tt \rho=(mass~of~rock)/(volume~of~rock)=(100~g)/(20~cm^3)=5~g/cm^3`