• # Physics Question on gravitation

Prove that the mass of an object on the moon is 1/6 of that on the earth.
• Ms. Shankar:

With my elementary knowledge of Physics, I can say that it can be proved that the weight of a substance in the moon is 1/6th of the weight of the same substance in the earth. This is because the gravitational pull of the moon is 1/6th of the gravitational pull of the earth.

But the mass of a substance remains unchanged.

Beware! I question everything and everybody.

• I will request that this type of queries may please be shifted to the Ask expert section so that the experienced members can give a detailed answer.
The concerned editor may please look into this.

Knowledge is power.

• Mass will be same irrespective of gravitational force. Weight will vary based on the gravitational force. The gravitational force on the moon is 1/6th than that of the earth. So weight will become 1/6th but not mass.
For example, if you take an object of 100 kg mass the weight of this object will be
Weight on earth = Mass X Gravitational force on the earth = 100Kg X9.8 m/S2. =
980 Kg m/S2 or N.
Weight on Moon = Mass X Gravitational force on the moon = 100kg X 9.8/ 6 m/S2 =
162.2 N.
Hope it is clear.
As opined by Umesh, I also feel these questions should be posted in Ask experts section.

drrao
always confident