Mass | Weight |
The mass of a body is the quantity of matter contained in it. | The force with which the body is attracted towards the centre of earth is called weight. |
Mass is a scalar quantity, that is it has only magnitude | Weight is a vector quantity that is it has both magnitude as well as direction. It is always directed towards the centre of earth. |
Mass of an object is constant and does not change from place to place | Weight of a body changes from place to place and is not constant |
Mass can be determined via ordinary balance | Weight of a body is measured via a spring balance. |
SI unit of mass is kilogram (kg) | SI unit of weight is Newton(N) |