Question

It is said that the mass of an object remains constant at all places while the weight may change. Why?

Answer 1

1. The quantity of matter contained in an object is called it's mass.
2. Mass is the measure of its inertia, and it is denoted by (m).
3. It is independent of the position of the object.
4. The SI unit of the mass is 'kg'.
5. The weight of an object is defined as the force with which it is attracted by the earth.
6. The value of weight (W) is given by W = mg, where m is the mass of the object and g is the acceleration due to gravity.
7. The weight of an object is directly proportional to the value of g where the object is located.
8. As the value of g is not a constant, the weight of an object is also not a constant and it varies from place to place.