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# Why would you weigh less on the moon compared to earth?

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• my dork
larry · 0 0
• You have mass and weight. There is a definition of mass which is basically the force required to move you if stationary or to alter your velocity if moving. Basically, it depends on the amount of you. It is correctly measured with the kilogram (kg) and remains the same wherever in the universe you are.

Weight is determined by the acceleration due to the force of gravity acting on your mass and is correctly measure with the newton (N). On Earth, gravity varies but it is very roughly 10 metres per second squared (m/s^2). Let's say you are Mr average male and you have a mass of 70 kg. Your mass is the same on Earth, on the Moon or in deep space. On Earth your weight is your mass multiplied by the acceleration due to the force of gravity acting on your mass, i.e. 70 x 10 = 700 N.

On the Moon the acceleration due to the force of gravity is about one-sixth of what it is on Earth. Therefore, on the Moon your weight will be less. If your weight on Earth is 700 N, on the Moon it would be ca. 117 N.
MARK · 0 0
• The Moon is much smaller than Earth and has a smaller mass than that of Earth. That exact number is .012 th the mass of Earth. So the smaller mass of the Moon does not pull (gravity) as much as that of the larger massed Earth. The Moon's surface gravity .156 that of Earth. 1/6 = 0.1666

Now if you were on Jupiter with a mass of 317.8 times that of Earth you would experience a weight (at cloud tops) of 2.64 times that of your weight on Earth.

However you 'mass' would remain the same regardless of where you went in the Universe.
Fred · 0 0
• Gravity
E · 3 1
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