Question

What is the relation between mass and weight?

Answer 1

Mass and weight are closely related because mass affects the weight of an object experiencing the effects of gravity. Weight is the measure of the force of gravity on an object's mass, while mass is the measure of how much matter there is in an object.
The proportionality between weight and mass lead to the following relationship:
W = m x g

W: Weight (in newton)
m: mass (in kilogram)
g: gravitationnal field strenght (in newton per kilogram)