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the centre of the sphere.
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Why planets are round in shape?
Gravity. It pulls the various parts of the object toward the center. Gravity increases with mass. Extremely massive objects, like planets and the larger asteroids, have enough gravity that the object must assume a roughly spherical shape.
How do you know that the moon is spherical?
In the vaccum of space any object around 500 miles in diameter is forced to be round under its own gravity. Thats why all the planets are round.
Why you know that the moon is spherical?
In the vaccum of space any object around 500 miles in diameter is forced to be round under its own gravity. Thats why all the planets are round.
Which effect does gravity have on celestial bodies?
It causes them to solidify in spherical shapes, and to orbit one another.
How do planets becomes spherical?
The quick layman's answer is 'gravity'. Imagine an object with the same over-all density and mass as the earth, only it is in the shape of a solid cylinder 100 miles in diameter. It would be (for just a brief moment) like a wire stretched out over a very long distance. It could never maintain such a shape; the object would still have gravity, and the ends would quickly and catastrophically collapse toward the center. This would be quite a thing to witness. By the time all the crashing and exploding comes to an end, the mass would be roughly spherical. This is just to visually illustrate the idea of gravity pulling the mass into a spherical shape; in fact some of the impacts may be so great that some of the material might be propelled at such a velocity that it would never return.
What is the center of gravity for a spherical object?
If the object is homogeneous, its center of mass is in its geometrical center. And if it is small compared to Earth, its center of gravity is, for all practical purposes, its center of mass.
What do you call an object smaller than a planet but with gravity too weak to form a spherical shape?
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Why does 3 spherical object with different mass will hit the ground at the same time when dropped simultaneously from the same height?
Gravity.
What determines how strong the force of gravity is at the surface of each planet?
The weight of an object on the surface of a planet depends on ...-- The mass of the object.-- The mass of the planet.-- The distance between the center of the object and the centerof the planet, i.e. the planet's radius.
Is your earth spherical if yes then how?
Gravity
Does each planet have to rotate or have wind to become round?
The round (spherical) shape of a planet comes about through the force of gravity, not through wind, but the rotation does have an effect on its shape. Mass is related to gravity, the more massive an object is the bigger the force of gravity at its surface. If an object is around 700-1000km in diameter (roughly) then it will have enough gravity for it to shape itself into a ball shape, overcoming the internal forces that would otherwise give it an irregular shape. A object (like a moon, dwarf planet or planet) has to be large enough and massive enough to 'pull' itself into a spherical shape. The spin of the object may cause the spherical shape to become squashed, if it is fast enough, as the centripetal forces at the equator will stretch it out somewhat.
Why planets are round in shape?
Gravity. It pulls the various parts of the object toward the center. Gravity increases with mass. Extremely massive objects, like planets and the larger asteroids, have enough gravity that the object must assume a roughly spherical shape.
What fore gave earth its spherical shape?
Gravity.
What is an asphericity?
An asphericity is a state or degree to which something is not spherical.
Why is it that the globe is spherical?
Because of the forces of gravity. All planets are formed because of gravity. Gravity pulls all the material to make a planet with the same amount of force on all sides thus-making a spherical shape.
How do you know that the moon is spherical?
In the vaccum of space any object around 500 miles in diameter is forced to be round under its own gravity. Thats why all the planets are round.
Why you know that the moon is spherical?
In the vaccum of space any object around 500 miles in diameter is forced to be round under its own gravity. Thats why all the planets are round.
