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# Why are mass and weight the same everywhere on earth?

Updated: 9/18/2023

Wiki User

13y ago

They are not the same, because they are completely different concepts. They are more or less proportional - a mass of one kilogram will have a weight of approximately 9.8 Newton - because the gravity is more or less the same on different parts of the Earth: whether you are at the North Pole, or the Equator, the distance from the center of the Earth won't change much.

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13y ago

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Q: Why are mass and weight the same everywhere on earth?
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### Is iron mass on the moon same as earth?

Mass is a constant everywhere in the universe. The weight on the moon is about one sixth of the weight on the earth, because the mass of the moon is about one sixth of the mass of the earth reducing the force of gravity.

### Can a mass be zero outside the earth?

Universality is a fundamental principle in physics - the same laws of physics apply everywhere at all times. So if the mass of something on earth is zero (such as the rest mass of a photon), then the mass will be zero everywhere in the universe, disregarding the effects of relativistic mass. Do not confuse mass with weight - mass is invariable - it is the same everywhere. Weight, however, diminishes in proportion to the square of the distance you travel away from the center of planet earth.

### If an object has a mass of 12.5 grams What is the mass on the moon?

The same as on earth because mass remains constant everywhere if you are thinking about the "weight" then it will be changed .

### If an object has a mass on earth is 60 units what will be the mass of the same object on the moon?

Exactly the same. Mass is the same everywhere. The weight will be 1/6 less on the moon though.

### Does an object weight the same everywhere in the universe?

No. It is the mass that stays the same everywhere in the universe.

### Free fall explains why astronauts have no mass while orbiting Earth?

Not quite. It explains why they have no weight. But their mass doesn't change.It's the same on earth, on the moon, and everywhere in between.

### If an object has a mass of 120 g on earth then on the moon it would have a mass of what?

The object would have the same mass as mass remains constant everywhere. On the other hand if it was weight it would change as weight = mass multiplied with gravitational force.

### What is the reason mass and weight is the same everywhere on earth?

The question isn't quite right. Wherever you go on earth, there is mass. Weight changes, however. I think it helps to know the fundamentals to understand this. Mass causes gravity, and gravity causes weight. If you were at the center of the earth, the gravity from the mass would pull you equally in all directions, and you would be weightless. Weight is the measurable effect of mass.

### What is reason mass and weight are the same everywhere on earth?

The question isn't quite right. Wherever you go on earth, there is mass. Weight changes, however. I think it helps to know the fundamentals to understand this. Mass causes gravity, and gravity causes weight. If you were at the center of the earth, the gravity from the mass would pull you equally in all directions, and you would be weightless. Weight is the measurable effect of mass.

### What stays the same everywhere mass or weight?

Mass does since it is the amount of matter in an object and it is the same everywhere. Weight is the amount of gravity force on the object, so it changes on a different planet.

### Does an objects weight stay the same everywhere?

No. It's mass stays the same everywhere, but the weight of that mass depends on the force ofgravity between the object and any other objects that happen to be nearby.For example, consider a car with a mass of 1,000 kilograms.If the car is on the earth, its weight is about 9,800 Newtons, which is the same as about 2,200 pounds.If the car is on the moon, its weight is about 1,630 Newtons, which is the same as about 365 pounds.If the car is on the International Space Station, its weight is zero.

### Does the shape of an object determine mass?

No. Mass is the weight of an object on earth. Scientists use mass instead of weight so the measurements will be the same everywhere. For example A big ballon has a relatively lower mass than a small sized stone