Inertial mass is a measure of an object's resistance to changes in its motion when a force is applied. It is an essential concept in physics, particularly in understanding Newton's First and Second Laws of Motion. When you push or pull an object, its inertial mass determines how much it will accelerate in response to the force. The greater the inertial mass, the more force is needed to change the object's speed or direction. Inertial mass can be measured by dividing the force applied to an object by the acceleration it produces, and its units are kilograms (kg).
Examiner-written GCSE Physics revision resources that improve your grades 2x
- Written by expert teachers and examiners
- Aligned to exam specifications
- Everything you need to know, and nothing you don’t
Share this article
written revision resources that improve your