Mass : The mass of an object tells, how much quantity of substance is there in the object. Measurement of mass is done with the help of physical balance in unit of kg.
Weight : The weight of an object is the force by which Earth attracts the object towards its centre. It is force and its value is obtained by mg where m is the mass of the object and g is the acceleration due to gravity at the location of the object. The measurement of the weight is done by spring balance.
On changing the place on the Earth, the mass remains unchanged while the weight varies according to change in the value of ‘g’.
