Question

The weight of an object on the surface of moon is 1.67N and its mass on its surface is 1 kg. Calculate its weight and mass on the surface of earth. (g on the earth = 10 m/s^2).

Answer 1

the mass will be same = 1 kg
weight = M*g = 1*10 @= 10 N

Answer 2

• Mass is amount of quantity of matter in a object or particle. Therefore it is a constant quantity for an object.

     so,

         mass of the object on surface of moon = mass of the object on surface                                                                                                 of earth

                1 kg = mass of the object on surface of earth

• Weight is the force on the object exerted by gravity. That quantity is not a constant. Gravitational force varies with the gravitational constant(g)

        Weight = Gravitational Force

         $W = F = mg$

                     Weight of the object on surface of Earth = 1 kg * 10 m/s²

                    Weight of the object on surface of Earth = 10 N