Have you ever wondered if the weight of the objects is the same on all the planets or different? Well weight doesn’t just depend on mass, it changes with gravity also.
In this blog, we’ll explore how the same object weighs differently on Earth, the Moon, the Sun and Pluto based on their gravity.
Keep reading to find out where you’d weigh the most and why it matters.
What’s the Difference Between Mass and Weight?
Have you ever stepped on a scale and wondered what it’s really measuring? It’s not your mass, it’s your weight. And that changes depending on where you are in the universe.
Mass is the amount of matter your body or any object contains. It never changes. Whether you’re on Earth, the Moon, Pluto, or even floating in space, your mass stays the same.
But weight is different. Weight is the force of gravity acting on your mass. That force changes depending on how strong gravity is on the planet or star you’re standing on.
For example, a 10 kg dumbbell:
Has the same mass on Earth, the Moon, or the Sun.
But it feels lighter or heavier because gravity pulls on it differently in each place.
This small difference matters a lot when we compare planets and stars. It’s the reason astronauts float on the Moon but would feel crushed under their own weight if they could stand on the Sun.
Gravity on Earth, Moon, Sun, and Pluto Compared
Gravity isn’t the same everywhere. Let’s find out, at which location would an object’s weight be the greatest?
Gravity Strength Table:
| Celestial Body | Gravity Compared to Earth | How It Affects Weight |
| Sun | 27.9 × Earth | Much behavior |
| Earth | 1 × Earth | Normal weight |
| Moon | 0.165 × Earth | Lighter |
| Pluto | 0.063 × Earth | Very light |
How Gravity Changes the Weight of a 10 kg Object
Weight depends on gravity, and mass both. If you place the same 10 kg object on different planets or stars, its weight changes based on how strong gravity is in each location.
Here’s how much a 10 kg object would weigh:
| Celestial Body | Gravity (m/s²) | Weight (Newtons) |
| Earth | 9.8 | 9.8 N |
| Moon | 1.62 | 16.2 N |
| Pluto | 0.62 | 6.2 N |
| Sun | 273.7 | 2737 N |
As you can see, the same object feels incredibly heavy on the Sun and extremely light on Pluto. This simple example shows how gravity completely changes what we feel as “weight.”
At Which Location Would an Object’s Weight Be the Greatest?
So, at which location would an object’s weight be the greatest? On Pluto, on Earth, on the Sun, or on the Moon?
The correct answer is the Sun, because it has the strongest gravitational pull among all four. Its gravity is so powerful that it makes the same object feel nearly 28 times heavier than it would on Earth.
The reasons:
- The Sun’s gravity is about 28 times stronger than Earth’s.
- A 10 kg object would weigh over 2700 N on the Sun.
- On Pluto, it would weigh just 6.2 N.
Weight increases with gravity, even when mass stays the same.
Final Thoughts on Mass and Gravity
Mass stays the same everywhere, but weight changes with gravity. That’s why an object feels light on the Moon and heavy on the Sun. The stronger the gravity, the more weight an object has.So, at which location the weight of an object would be greatest? on Pluto on Earth, on the Sun on the Moon, the answer is the Sun. Its powerful gravity makes any object weigh the most. This concept is key in space science and helps us explore other worlds safely.