EVERYDAY SCIENCE

Detailed explanation-1: -Assertion :The mass of a substance is constant whereas its weight may vary from one place to another. Reason: Mass of a substance is the amount of matter present in it while weight is the force exerted by gravity on an object.

Detailed explanation-2: -Weight is the force of gravity on an object. Mass always stays the same, but weight can change depending on how much gravity is acting upon an object. Cool fact: Any two masses have a gravitational attraction for one another, and the greater the mass, the greater the pull.

Detailed explanation-3: -No matter where you are in the universe, your mass is always the same: mass is a measure of the amount of matter which makes up an object. Weight, however, changes because it is a measure of the force between an object and body on which an object resides (whether that body is the Earth, the Moon, Mars, et cetera).

Detailed explanation-4: -Therefore, the weight changes as per the change in acceleration due to gravity, but the mass of a body does not change by change of place of a body. It always remains constant.

Detailed explanation-5: -The weight of an object is defined as the amount of force with which it is attracted by the earth. Weight is equal to the mass of the object (m) x the acceleration due to gravity (g).