Using Dimensions to Check Physics Equations

Dimensional analysis is a useful way to check physics and engineering equations. It works by writing physical quantities in terms of basic dimensions such as mass, length, and time. Quantities like velocity, acceleration, and force are derived from these basic dimensions.

This method helps compar...

In dimensional analysis, mass, length, and time are termed fundamental dimensions, and physical quantities in mechanics can be expressed in terms of fundamental dimensions.

For instance, consider a ball being hit by an object; the force applied is calculated as the product of mass and acceleration, where acceleration is denoted as a chang...