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Loraine Quigley
Wiki User
∙ 11y ago1. Earth isn't an exact sphere and it's slightly oblate, so there is less distance to the center of gravity at the poles than at the equator.
2. Earth rotates, so you have to factor the centrifugal force of rotation that works against gravity, which is highest at the equator and zero at the poles.
The difference is gravity, however, is extremely small, on the order of 0.4% to 0.5% -- so an object that weighed 1000 grams at the poles would weigh between 995 and 996 grams at the Equator, and also a tiny bit less if it was at an elevation high above sea level.
Wiki User
∙ 15y agoThe Earth rotates on its axis at a rate of one complete revolution per day. This is just under half a mile every second at the equator. Thus there is a fair amount of centrifugal force - the force that is directed outward from a spinning object - especially near the Equator. This causes the Earth to bow outwards slightly. As a result, the Earth's circumference at the equator is about 70 km longer than its polar circumference.
Wiki User
∙ 11y agoSaturn and Jupiter are flat at the poles because they Are spinning plants and are made mostly made out of gas unlike Earth which is not made up of gases so it is more solid so it doesn't get flattened at the poles
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∙ 13y agoThe Earth's rotation produces a kind of "centrifugal force". This changes the Earth's shape, approximately from a perfect sphere (which it would have in the case of no rotation) to an approximation of an ellipsoid.
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∙ 16y agoBecause of the tilt of the Earth's axis there is less direct sunlight at the poles (it gets less energy).
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∙ 15y agoThe Earth is Flattened at the Poles because of the Centrifugal force of the Earth
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∙ 10y agothe Earth's rotation.
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∙ 11y agoit isnt!
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∙ 8y agono
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North and south poles of earth planet appears flat why?
because it has a magnetic field
Does the earth spin on its true poles or magnetic poles?
Magnetic poles
Why don't the Earth's geographic poles coincide with the magnetic poles?
because of core of our earth.
What is true about earths poles?
Only the magnetic poles wanderD.Earth's magnetic and geographic poles are generally not in the same place.Geographic poles are defined by Earth's rotation.
Is earth's magnetic poles and its geographic poles are in the same place?
no
Is Earth in the shape of a circle?
No, it slightly bulges at the equator, and is a bit flat on the North and South Poles.
What in the bible travels from pole to pole?
Nothing. Bible says that earth is flat, and thus it can't have poles.
North and south poles of earth planet appears flat why?
because it has a magnetic field
Does the earth spin on its true poles or magnetic poles?
Magnetic poles
Why don't the Earth's geographic poles coincide with the magnetic poles?
because of core of our earth.
Is the planet Earth a circle?
No. A circle is 2-dimensional. The Earth is a sphere. no actualy, it is a sphere, but a long time ago, historians thought that the world was a flat circle
How do the poles help cool earths temperature?
how do the earth's poles help cool the earth's temp
What is true about earths poles?
Only the magnetic poles wanderD.Earth's magnetic and geographic poles are generally not in the same place.Geographic poles are defined by Earth's rotation.
How do the effects of gravity show that earth is almost spherical?
Proof of earth's shape is that earth casts a curved shadow on the moon during a lunar eclipse. Something flat like a book casts a straight shadow whereas objects with curved surfaces casts curved shadows.
Where are poles of disc magnet located?
On the flat sideds
Is earth's magnetic poles and its geographic poles are in the same place?
no
When are Earth's poles expected to switch?
Earth's poles are to switch every few hundred thousand years.
