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Weight, a commonly misunderstood term, is the force of gravity on a mass.
Mass is constant, but weight can vary depending on the gravitational field.
Gravity is a force that is exerted on an object by another object.
The formula for weight is:
G x m1 x m2 / r2
where G is the "gravitational constant",
m1 is the mass of one object and m2 is the mass of the other object.
The distance between the objects is r.
The gravity of a planet acts as if all the mass is at the center of the planet.
So, for an astronaut on the planet surface, r in the equation is the radius of the planet.
The weight of an astronaut is different on different planets because the masses of the planets and their diameters are different from the Earth, making the force of gravity stronger or weaker, thus altering the weight.
In fact the "surface gravity" on Mars and Mercury is almost exactly equal. That's because Mars has a bigger mass, but also a bigger diameter. In this case, these two factors cancel out almost exactly.
Incidentally, an astronaut couldn't actually stand on the surface of one of the "gas giant" planets because the "surfaces" are gas.
More details: the rotation speed of the planet affects the effective gravitational force you feel, because of centrifugal effects.
This is particularly important in the case of large fast spinning planets like Jupiter and Saturn.
What else can I help you with?
Can astronauts travel to distant planets in the solar system?
They could, but as of now, no astronauts have travelled to any other planets in the solar system.
Will astronauts disover more planets?
I would suppose that the scientist with the super powered telescopes would discover planets before the astronauts would.
What happens to your weight when you go to a different planet?
Your weight changes. Relatively your weight increase on planets bigger than Earth and your weight usually decreases on planets smaller than Earth.
Why do astronaut travel to different planets?
No astronaut has travelled to a different planet. If they were to do so it would be for exploration and exploitation. Astronauts are known to explore and travel for the benefit of the others.
Why do you weigh more on earth that other planets?
You don't, necessarily. On Jupiter you would weigh more than twice your weight on Earth. Your weight would be different on the different planets because the strength of gravity varies.
Astronauts weight the same as they would on other planets?
Astronauts' weight would vary on different planets due to differences in gravity. Their weight is determined by the gravitational pull of the planet they are on, so they would weigh less on a planet with weaker gravity and more on a planet with stronger gravity.
What is astronauts do?
Astronauts go to different planets etc and collect specimens and other things so that scientists can research and find out more about our solar system.
Why is weight different on different planets and the moon?
Some planets have less gravity or more gravity.More gravity giving you more weight and less giving you less weight.
Does gravity affect your weight on different planets?
Yes, gravity affects your weight on different planets. Weight is a measure of the gravitational force acting on an object, so on planets with stronger gravity, you would weigh more, and on planets with weaker gravity, you would weigh less compared to your weight on Earth.
What can astronauts see in space?
Astronauts can see planets, stars, and species.
Can astronauts travel to distant planets in the solar system?
They could, but as of now, no astronauts have travelled to any other planets in the solar system.
Why do people have different weight on different planets or on the moon?
Because different planets have different mass, which means that gravity is weaker or stronger depending on the mass. If gravity is stronger than objects will have more weight, and if it's weaker they will have less weight.
Will astronauts disover more planets?
I would suppose that the scientist with the super powered telescopes would discover planets before the astronauts would.
What happens to your weight when you go to a different planet?
Your weight changes. Relatively your weight increase on planets bigger than Earth and your weight usually decreases on planets smaller than Earth.
What is the force that makes your weight change on different planets?
Gravity
How many planets have astronauts landed on?
earth
Why do astronaut travel to different planets?
No astronaut has travelled to a different planet. If they were to do so it would be for exploration and exploitation. Astronauts are known to explore and travel for the benefit of the others.
