Here's why:
* Mass is the amount of matter in an object. It's a fundamental property and doesn't change with location.
* Weight, however, is the force of gravity acting on an object's mass. This force is directly proportional to the strength of the gravitational field.
Example:
* An object with a mass of 10 kilograms on Earth will have a weight of approximately 98 Newtons (10 kg x 9.8 m/s²).
* On the Moon, where gravity is weaker, the same object would have a weight of about 16 Newtons (10 kg x 1.6 m/s²).
So, while the object's mass remains constant, its weight changes depending on the gravitational pull.
