Admin Table of Contents
- 1 What causes slight flattening of the Earth and the two poles?
- 2 What causes slight flattening of the Earth at two poles and bulge at the equator?
- 3 Why do spinning objects flatten?
- 4 What causes the formation of day and night?
- 5 Why is the Earth slightly tilted?
- 6 What is rotational flattening?
- 7 What are the two main factors that cause different seasons on the Earth?
- 8 What causes Earth’s revolution?
- 9 What causes the equator to bulge at the Poles?
- 10 How fast does the Earth rotate?
What causes slight flattening of the Earth and the two poles?
We know that the Earth spins around itself at tremendous speed. This spinning results in an outward centrifugal force which is highest at the equator and gradually decreases to zero at the pole. This causes the equator to bulge outward and the poles to flatten slightly.
What causes slight flattening of the Earth at two poles and bulge at the equator?
Answer:- the rotation of the Earth is considered responsible for the slight flattening, of the Earth at the two poles and a bulging at the equator.
Why Earth is flattened at the top?
This bulging at the equator is caused by the spinning motion of the earth, much like how spinning pizza dough in the air causes it to flatten due to centrifugal force.
Why do spinning objects flatten?
The equilibrium shape of a rotating star–or planet, for that matter–is not a sphere, but rather an flattened oblate spheroid. The reason is that centrifugal effects are greatest at the rotational equator and work against the object’s self-gravity.
What causes the formation of day and night?
Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term ‘one day’ is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.
Why is Earth slightly flattened?
The Earth’s rotation creates an outward force that is highest at the equator and zero at the poles. Since the Earth is not perfectly solid throughout, this force results in the Earth being ‘squashed’ into a slightly flattened sphere. The effect is quite small.
Why is the Earth slightly tilted?
Have you ever wondered why the Earth is tilted instead of just perpendicular with its plane of orbit? Scientists have taken a crack at answering that question. The main consensus is that it has to do with Earth’s formation along with the rest of the planets in the Solar system.
What is rotational flattening?
Consider the equilibrium configuration of a self-gravitating celestial body, composed of incompressible fluid, that is rotating steadily and uniformly about some fixed axis passing through its center of mass.
Why do galaxies flatten?
When there’s lots of dust in a galaxy, the galaxy tends to collapse into the planar shape of a spiral galaxy (to maintain angular momentum and to minimize gravitational potential energy).
What are the two main factors that cause different seasons on the Earth?
Remind students that the two reasons seasons occur are the tilt of a planet’s axis and its orbit around the sun.
What causes Earth’s revolution?
Revolution is the movement of the Earth around the Sun. The Earth takes 24 hours to complete a rotation with respect to the sun. The Earth’s axis of rotation is tilted by 23.5 degrees. This tilt causes the different seasons of the year.
Why is the earth’s surface flat at the Poles?
The Earth has poles which are flattened because of the centrifugal force that acts on its poles while it rotates. The rotating of the earth in the angles makes it also bulge at the equator. The earth rotates at an immense amount of speed, at about 1000 miles per hour. A rotation is completed in 24 hours.
What causes the equator to bulge at the Poles?
The bulge of the planet at the equator is cause by the Earth’s rotation, as is the corresponding flattening at the poles.The Equator, Ecuador is located right on the line, which is where it gets its name from.Equator Is gravitional force is different on poles and the equator of earth?
How fast does the Earth rotate?
As the Earth rotates, points on the equator are traveling at roughly 1000 miles per hour to complete one revolution in a day, while points near the poles are barely moving at all.
Why are the poles of a sphere spherical in shape?
The gravity tends to make things spheroid. The reason for the flattening at the poles is the same as for any spherical object that spins, centripital force. Take any sphere and spin it around and you will see the effect. The centripital force at the equator is also noticable when you measure gravity.