What Is the Difference Between Mass and Weight of an Object. Will the Mass and Weight of an Object on the Earth Be Same as Their Values on Mars? Why?

Difference between mass and weight of an object is as follows:

S. No.MassWeight
1.Mass is the amount of matter contained in a body.Weight is the force exerted on a body due to the gravitational pull of another body such as Earth, the sun and the moon.
2.Mass is an intrinsic property of a body.Weight is an extrinsic property of a body.
3.Mass is the measure of inertia. Weight is the measure of force.
4.The mass of a body remains the same everywhere in the universe.The weight of a body depends on the local acceleration due to gravity where it is placed.
5.The mass of a body cannot be zero.The weight of a body can be zero.
6.The SI unit of mass is kilogram (kg).Since weight is a force, its SI unit is newton (N).
7.The mass of a body can be measured using a beam balance and a pan balance.The weight of a body can be measured using a spring balance and a weighing machine.

The mass of an object on the Earth will be same as that on Mars but its weight on both the planets will be different. This is because the weight (W) of an object at a place depends on the acceleration due to gravity of that place i.e. W=mg or W∝g and since the values of acceleration due to gravity on both the planets differ, thus the weight of the object will be different for both the planets.