# Changes in mass and weight on surface of Moon with respect to Earth

On the surface of the moon, the following changes(s) occur(s) with respect to the Earth:

1. Mass remains constant but weight decreases
2. Only mass decreases
3. Mass and weight remain unchanged
4. both mass and weight reduce Manish Listener Asked on 31st October 2014 in

Answer: 1. Mass remains constant but weight decreases.

Explanation: Mass of an object is always remains constant irrespective of surroundings, movement or circumstances. While weight changes with location because the value of the change in ‘Gravitational Force’ at that place.

Mass: Mass is the amount of ‘Matter’ present in an object. It is represented by ‘m’ in science in its unit is ‘kilogram’.

Weight: It is the force experienced by an object due to gravity. Weight is represented by ‘W’.
W = m * g   — where g is gravitational constant.
Value of g – gravitational constant varies with location and hence weight of an object changes.

g (on Earth) = 9.81 m/s2
g (on Moon) = 1.6249 m/s2

As the value of g decreases on Moon so weight of object will also be decreased as compared to its weight on Earth. Pushpendra Pal Dean Answered on 1st November 2014.