0
It's a little technical, but start here: http://en.wikipedia.org/wiki/Image:Geoids_sm.jpg Follow some of the links to easier pages if you need to. The difference in the gravitational field is caused by greater and lesser densities in the Earth. This makes "mass" a better way to describe things than "weight". Weight is different everywhere you go. Mass is always the same. ....
Wiki User
∙ 16y ago
Wiki User
∙ 10y agoYes, the weight of an object vary on earth surfaxe from place to place. As we know weight is directly proportional to acceleration due to gravity and acceleration due to gravity is inversly proportional to the distance between the earths center and surface . The land structure of earth is same all over the world. It is somewhat flattened at the poles and bulged at equator.similarly there are high mountains,seas,hill,valleys,etc on earth surface. This makes distance of surface from earths center variation and due to which weight also vary from place to place. But point to be noted is that mass does not changes in any place of the uniserse. It is constant all over the world.
Wiki User
∙ 13y agoIt depends how accurately you can measure weight! Gravitational acceleration varies at different places on the planet because the Earth's mass is not uniformly distributed.
However these differences are so small they can usually only be detected using very sensitive instruments called gravimeters which are a special type of accelerometer.
Another factor that has a more significant affect on weight is the net (or sum) of forces acting on an object or person. This is known as apparent gravity!
For example because the earth is rotating, there is a varying centrifugal force acting at the equator when compared to the poles. This force acts in the opposite direction to gravity (in effect it acts to throw objects away from the Earth but is thankfully significantly weaker than gravity). So the sum of the forces acting on the object are gravity (acting towards the Earth) minus the centrifugal force (acting away from the earth).
As this centrifugal force is larger at the equator it acts to reduce the force of gravity to a greater extent than at the Earth's poles. As such apparent gravitational acceleration is lower at the equator to the extent that an object will weigh about 0.5 % less at the equator than at the poles.
Please see the related links for more information.
Wiki User
∙ 13y agoThe force of gravity on Earth changes depending on where you're standing on it. The first reason is because the Earths rotation. This rotation is trying to spin you off into space, but this centripetal force is not much and is overwhelmed by the force of gravity. The gravity of Earth at the equator is 9.789 m/s2, while the force of gravity at the poles is 9.832 m/s2, so you weigh more at the poles than you do at the equator.
Wiki User
∙ 7y agoFirst, this variation is VERY slight and would not be noticeable except using special measurement systems.
Weight is the force exerted by a mass under the influence of a gravity field. Therefore if you took a 10 gram mas and weighed it on the Earth and then on the Moon, the Mass would only weigh 3 grams on the Moon because the Moon's gravity field is only 1/3 as strong as Earth's.
OK if you understand the Earth/Moon gravity principle we can now move on to the DETAIL of Earth's Gravity field.
The Earth is a big planet and the rocks from which it is made are different form place to place on its surface. Frequently these difference involve rocks of different density (Limestone is much less dense than Gabbro).
Thus as density is mass per unit volume, at different places on the Earth's surface, the detail of the mass of the Earth directly beneath you changes with the rocks directly beneath you. This means that the force of gravity acting on you changes slightly as you move round the Earth.
Further the force of gravity also varies with distance from the centre of the Earth and therefore on top of a mountain gravity is weaker than at sea level.
Thus we can see that in detail the pull of gravity varies from place to place on Earth and this means that the weight of the 10 gram mass will vary too.
It is possible to measure and map these difference in gravity around the Earth. Such a map is called a Gravimetric map.
Wiki User
∙ 13y agoAt the equator, or better yet on a mountain at the equator as there would be more gravity there.
Wiki User
∙ 11y agoYour weight is the same no matter where you are. The amount of gravity pulling on you is different on the moon than it is on the earth.
Wiki User
∙ 12y agoOn top of a mountain.
Add your answer:
Earn +20 pts
How much does a ship weigh?
Ships come in different sizes, and all sizes have different weights. The only sure thing is that they will weigh less than the amount of water they displace.
Why do you weigh less when the moon is directly over your heads?
No - you do not weigh less.
Why does an object weigh less at the top of the mountain than does at sea level?
It has to do with Earth's gravitational force. The farther away an object is from the object it is attracted to (in this case, the solid, magnetic core of the Earth), the less effect the force of gravity has on it.
What do you mean by gravity?
If you mean what is gravity then it's the characteristic of space that causes a pair of forces between you and center of a planet, for example earth. this is what causes how much you weigh, which is also why you weigh less on the moon.
What is the relationship weight v mass?
The relationship is: weight = mass x gravity On Earth, since gravity is about 9.8 meter/second2, or the equivalent 9.8 newton/kilogram, that means that a mass of 1 kilogram has a weight of 9.8 newton. In other places, with more or less gravity, the same mass will also weigh more, or less.
Why do things have less mass on the moon than Earth?
They don't have less mass. They weigh less. That's completely different.
Is the mass of the astronaut on Mars bigger smaller or the same compared with on Earth?
You would have the same mass on the Earth as you would on the moon. You would just weigh less on the moon because there is less gravity there than on the moon.
Why do men weigh less on the moon?
because the moon has less mass than earth so humans weigh less on the moon than earth
Where on earth do you weigh more and weigh less?
near the poles you weigh more
If you weigh 100lbs on earth you would weigh 16.6lbs on the moon and why?
Anytime you are in a place with less gravity, you or any object will weigh less. The force of gravity on the moon is much less than on Earth.
Do you weigh more or less on Venus?
9.7% less than you weigh on Earth, 138% more than you weigh on Mars.
How does the rotation of the earth affect life weight at different places?
For the same reason that you would get thrown off a quickly moving merry-go-round if you don't hold on, you weigh a little less at the equator than you do at the poles.
Is it true that do you weigh more on the moon than you do on earth?
No, you weigh less because the moon has less mass, or is smaller, than earth whick means that is has less of a gravitational pull.
Why is a persons weight different on earth than on the moon?
The gravity is less on the Moon, because the Moon is smaller than earth; it has less mass, and therefore "sucks" less than the earth. Weight is gravity times mass, you have the same mass on Earth and on the Moon (and in space), but weigh less on the moon.
Will you have more or less weight on the moon than on earth?
You will have less weight on the Moon than on Earth (83.3% less), but your mass will remain unaffected. If you weigh 150lbs on Earth, then you would weigh only 26.55lbs on the Moon.
How can you weigh more on the earth than you would on the moon and still have the same mass in both places?
Mass measures how much matter there is in an object, but weight measures how much gravity acts upon it. You have the same amount of matter in both places, but you weigh less on the moon because there is less gravity.
Would you weigh more on Saturn or Mercury?
You would weigh less because there is less gravity on mercury than on earth so you would weigh less!
