2.9.2 Weight and Mass

Mass

  1. Mass is defined as the quantity of matter. It is a base quantity and also a scalar quantity, which mean it has no direction.
  2. The SI unit of mass is kilogram (kg)

Weight

  1. The weight of an object is defined as the gravitational force acting on the object.
  2. The SI unit of weight is Newton (N)

Differences between Weight and Mass

Weight Mass
Depends on the gravitational field strengthIndependent from the gravitational field strength
Vector quantityScalar Quantity
Unit Newton (N)Unit: Kilogram (kg)