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Explain why the force of gravity is not exactly the same everywhere on earth's surface?
Wiki User
∙ 12y ago
The elevation, i.e. radius from the center of the Earth, is not constant around the Earth. You have mountains and you have oceans, with widely varying elevation. Also, the radius of the Earth at the equator is larger than the radius at the poles, also making a difference in elevation.
Recall that gravity is proportional to the masses of the two objects, i.e. you and the Earth, and inversely proportional to the square of the distance between them, i.e. the elevation.
Also, while it is convenient to simplify the graviometric representation of the Earth to a point located at its center, there are variations in density at various points which can cause variation in gravity, not just due to elevation.
Wiki User
∙ 12y ago
Wiki User
∙ 8y ago
Because the Earth is not a perfect sphere, and because its mass is not
uniformly distributed inside of it.
The effect of all of that is that as we move around here on the surface, our
distance from the Earth's center of mass changes slightly. And since the
local value of gravity is inversely proportional to the square of ones distance
from the center of the Earth, the value of gravity changes as we move around
to different places.
Wiki User
∙ 8y agoGravity depends on the amount of mass, and the distance. The masses on Earth are not uniformly distributed; but mainly, Earth has an equatorial bulge. Also, the "centrifugal force" counteracts gravity in part.
Wiki User
∙ 12y agodifferences in the density of rocks below different locations. higher density, stronger gravity at that location. lower density, weaker gravity at that location.
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Is there gravity in the exosphere how much?
Since that is very near to Earth - compared to Earth's radius - the gravity will be almost the same as on the surface. If you want to know exactly how much the gravity gets reduced, look up the distance, and use the formula for gravitation.
What is the gravity percentage on Mars?
Martian gravity is only 38% of the Earth's gravity.
What is the gravity of Kepler 16b?
The surface gravity is 14.5 ms-2.
Why does air pressure drop as you move away from the earths surface?
In simple terms... gravity ! Gravity is holding the air close to the surface of the Earth. The further away you are from the surface - the lower the gravity - and thus the lower the air pressure.
Where does gravity pull people and objects?
On the earths surface gravity pulls you down.
What is the gravity at Bermuda triangle?
The gravity at the Bermuda triangle is exactly the same as the rest of the earth, affected only by the phases of the moon, exactly the same as the rest of the earth.
Is gravity on venus the same as the gravity on earth?
Yes. Gravity is exactly the same everywhere ... directly proportional to the product of two masses, and inversely proportional to the square of the distance between their centers. In the case of Venus, this means that the acceleration due to gravity on that planet's surface, as well as the mutual gravitational forces between the planet and any object on its surface, is roughly 90% of what it is on Earth's surface.
Why the force of gravity is not exactly the same everywhere on earth's surface?
The earth is not perfect sphere therefore the radius differs from place to place and from Newton Gravitational law force is directly proportional to radius
Is there gravity within 200km of the earth?
Yes. Gravity exists everywhere. Within 200 km of its surface, Earth is the dominant gravitational body.
Where is the zenith on a globe?
Everywhere. The zenith at a given point is the local vertical direction pointing away from the direction of the force of gravity at that location. In other words it is the point that is exactly straight up, no matter where you are on earth's surface.
Gravity moons surface is weaker than the earth surface fact or opainion?
Gravity behaves exactly the same on the moon as it does on earth. The formula that's used to calculate the gravitational force between two masses is the same formula everywhere. Using that formula, it's easy to calculate that any object weighs about 1/6th as much on the moon as it weighs on the earth.
Explain how a parachute works using the terms air resistance surface area and gravity?
A parachute works as the gravity allows the parachute to go up into the air, then the surface area is covered with air resistance.
What does the Moon's gravity and earths gravity have in common?
Gravity on the moon has exactly the same characteristics and behavior as it has on Earth and everywhere else. It causes a pair of forces between any two objects, that are proportional to the product of the objects' masses and inversely proportional to the square of the distance between their centers. Because of the moon's much smaller mass, the force between the moon and an object on its surface is only about 16% as strong as the force between the Earth and the same object when the object is on the Earth's surface.
How much preasser is gravity?
The pressure of gravity on a surface is(total force of gravity on the surface) divided by (area of the surface)
How much surface gravity does the moon have?
The surface gravity on the moon is approximately one sixth the surface gravity of Earth.
If you assume that Gravity is nothing but Curvature in the space then also why body will move downwards on the curved surface?
The "downward" on the "curved surface" is a 3D model to explain and visualize the effect.
What effect does gravity have on mercury?
Gravity behaves exactly the same on Mercury as it does everywhere else in the universe. Taking into consideration the mass and radius of Mercury, you would calculate that the the acceleration due to gravity at its surface, and therefore the weight of any object on its surface, are about 38% of what they are on Earth, and you'd be correct. That's what they are.
