Chapter 1 - Measurement and Problem Solving - Learning Path Questions and Exercises - Conceptual Questions - Page 27: 10

Unit analysis can tell if an equation is dimensionally correct but not physically correct.

In unit of analysis it is important to determine unit of quantities from defining equations. For example: the density of an object $ρ= m/V $ unit $ (kg/m^3)$ where $m$ is the object of mass and $V$ is the volume . In SI units mass is measured in kilograms and volume in cubic meters,