A body has a mass of 6 kg on the Earth; when measured on the Moon, its mass would be

In physics, mass and weight are distinct concepts. Mass is defined as the quantity of matter present in an object and is measured in kilograms (kg) [c3]. It is an intrinsic property of a body that remains constant regardless of its location in the universe [c2, t1]. Whether an object is on Earth, the Moon, or in deep space, its mass does not change [t5, t8]. Weight, however, is the gravitational force acting on that mass and varies depending on the local gravitational pull [c2, t1]. While the Moon's gravity is approximately one-sixth of Earth's, causing the weight of an object to decrease, the mass remains identical [c1, t5]. Therefore, a body with a mass of 6 kg on Earth will still have a mass of exactly 6 kg on the Moon [t6].

Sources

1. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 9: The Amazing World of Solutes, Solvents, and Solutions > A step further > p. 142
2. [2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 5: Exploring Forces > A step further > p. 75
3. [3] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 5: Exploring Forces > Prepare some questions based on your learnings so far ... > p. 78