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Is this also true for your mass? Why?

2007-09-18 09:52:20 · 10 answers · asked by Candy C 2 in Science & Mathematics Astronomy & Space

10 answers

No. Your mass is the same but your weight is different.

This is because acceleration of gravity on Earth is 9.78 m/s^2 but on the Moon it is only 1.62 m/s^2. In addition to making things fall more slowly on the Moon, this reduced gravity makes things weigh less on the Moon.

A 1kg mass weighs 9.78 Newtons on Earth but only 1.62 Newtons on the Moon.

In Imperial units, acceleration of gravity is 32.1 ft/s^2 on Earth and 5.3 ft/s^2 on the Moon.

A 1 slug mass weighs 32.1 pounds on Earth and only 5.3 pounds on the Moon.

But people without training in physics have never heard of slugs or Newtons and they incorrectly think kilograms measure weight. When someone says something weighs 1kg, they really mean it has a mass that weighs 9.78 Newtons on Earth. And if they say something has a mass of 1 pound they really mean it is an amount of mass that weighs 1 pound on Earth, which would be about 1/32 of a slug.

2007-09-18 09:56:41 · answer #1 · answered by campbelp2002 7 · 0 0

Your mass would be the same, but your weight (gravity acting upon your mass) would not. Why? Because the gravity attraction on the moon is less because the moon's mass is less, and gravity is proportional to the sum of the masses of two objects.

In order to determine mass of an object on the moon, or anywhere that has gravity, is to use a balance scale comparing the mass of the unknown object to knowns (standards).

2007-09-18 17:20:25 · answer #2 · answered by Ken 1 · 0 0

No. your weight is determined by the amount of force pulling on your mass. The moon's force is 1/6 that of Earth, meaning if you weighed 180 pounds on Earth, you'd only weigh 30 pounds on the moon.

Mass remains unchanged - the amount of force needed to stop your 180 pounds (or to get it going) is the same, regardless of where you are - on the Earth, Moon, or in Space.

2007-09-18 17:38:31 · answer #3 · answered by quantumclaustrophobe 7 · 0 0

weight according to a scale would not be the same because the earth and the moon have different forces of gravity. Your mass would not change

2007-09-18 17:01:07 · answer #4 · answered by emjay 5 · 0 0

When watching astronauts in space they float around weightless. Again when watching the moonlanding,the astraonauts leap in the air with every step they take. I assume then, because the moons gravity is lower than the earths the astronauts will weigh less on the moon. Please note that this is an assumption!! Hope someone will come up with a authorative scientific answer to your question.

2007-09-18 17:08:32 · answer #5 · answered by Anonymous · 0 0

You actuall have the same mass, this is not hacged.
Therefore if you weigh say 60kg on Earth, your mass is still 60kg on the moon.
However, the gravity on the moon is only aprox 1/6th of Earths so therefore if your set of scales was on the moon, your downward force would only read as aprox 10kg.

2007-09-18 17:05:33 · answer #6 · answered by Tony 3 · 0 0

You weigh more on the earth. Weight is the measure of the gravitational force pulling you down. Earth is larger than the moon, so earth has a stronger gravitational pull. The moon has a weaker gravitational pull because it is a lot smaller than Earth.

2007-09-18 17:00:01 · answer #7 · answered by Cilly 2 · 0 0

your mass is the same.
your weight is far less.
Weight = Mass * Gravity
The moon's gravity is far less than the earth's.

Your mass is your mass...no matter where you are. Mass does not depend on gravity or location.

2007-09-18 16:58:05 · answer #8 · answered by Flyer 4 · 0 0

no because there is less gravity on the moon, so gravity is not pulling you down onto the scales (if you had any on the moon:P) as much as it is on earth

2007-09-18 16:56:53 · answer #9 · answered by Anonymous · 0 0

you would actually weigh less on the moon because their is less of a gravitational pull! the more gravity, the heavier we weigh.

2007-09-18 17:28:57 · answer #10 · answered by bigtaz 1 · 0 0

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