Why is weight on the moon 1/6 of weight on Earth?

 Weight vs Mass

• Mass is the amount of matter in an object and remains constant everywhere.
• Weight is the force of gravity acting on mass, and it depends on local gravity.

 Why Is Moon's Gravity Weaker?

1. Moon’s mass is much smaller: Earth is about 81 times more massive than the Moon.
2. Moon’s radius is smaller: Only about 1/4th of Earth's radius.
3. Gravitational Force Formula:

F = (G × M × m) / r²

• G: Gravitational constant
• M: Mass of the Moon or Earth
• m: Your mass
• r: Radius from center

Due to lower mass and smaller radius, the Moon's surface gravity is just about 1/6th that of Earth.

Example:

If your weight on Earth is:

60 kg × 9.8 m/s² = 588 N

Then on the Moon:

60 kg × 1.63 m/s² = 97.8 N

This is roughly 1/6th of your Earth weight.