What are the differences between the mass of an object and its weight?




It is quantity of matter contained in a body

It is a force by which a body is attracted towards center of earth

It is measured in kilogram (SI Unit of mass is kg)

It is measured in Newton. (SI Unit of weight is N)

Mass of a body remains constant

Weight of an object changed as per acceleration  due to gravity

Mass of a body is same on earth and moon

Weight of body on moon is 1/6 of mass of body on moon

Mass of body can never be 0

Weight of a body is zero only when acceleration due to gravity is zero.

Mass is a scalar quantity, it only has magnitude

Weight is a vector quantity,it has magnitude as well as direction


  1. Class 9
  2. Chapter 10 Class 9 - Gravitation (Term 2)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo