Question

) define
mass and weight of an object. Are the two same? define 1
kg of weight and express
in newton.​

Answer 1

mass-Mass is both a property of a physical body and a measure of its resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The basic SI unit of mass is the kilogram.

weight- the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force.

no the two are not same. mass is the space that it holds while weight differ due to gravity