Which Best Indicates the Exact Shape of Earth

Slightly oblate shape c. The Best Credit Cards Of 2022.

10The best evidence that the Earth has a spherical shape is provided by AA BB CC DD 11In the diagram below letters A through D represent the locations of four observers on the Earths surface.

. This means that instead of being of equal circumference in all areas the poles are squished resulting in a bulge at the equator and thus a larger circumference and diameter there. It indicates a way to close an interaction or. Today it seems almost nonsensical.

Globe is the model of the earth. This is due to the centrifugal force created by the earths constant rotation. Observed irregular shape and gravity field of the Earth they cannot explain the long-wavelength departures from a hydrostatic figure.

An oblate spheroid or oblate ellipsoid is an ellipsoid of revolution obtained by rotating an ellipse about its shorter axis. Since the orbit of the earth is only 3 oblate it is closer to a circle. Measurements of gravity are greater at the poles than at the Equator.

But later on when pictures were taken from space then we got to know that the earth is actually not perfectly spherical but it is very close to that of the shape of a sphere. It defines the radius inverse flattening semi-major axis and semi-minor axis for an ellipsoid. Correct option is B Earth is slightly flattened at the poles and bulged at the equator.

Pictures taken from space by astronauts and by orbiting satellites also show us that the Earth is a ball rotating in space. The line joining the sun and the planets sweep out equal areas in equal time intervals. Progress Practice Now.

Amesosphere Bstratosphere Cthermosphere Dtroposphere. A spheroid describing the figure of the Earth or other celestial body is called a reference ellipsoid. A B C D 3Which pie graph correctly shows the percentage of elements by volume in Earths troposphere.

Perfectly spherical shape b. Take a look at the shape of the Earths shadow during a lunar eclipse particularly during a partial phase. The right option must be option B.

This indicates how strong in your memory this concept is. This evidence best supports the inference that Earth has a a. Yes in principle Earth is spherical.

Up to 24 cash back 1Precise measurements of the Earth indicate that its polar diameter is A B C D 2Which diagram most accurately shows the cross-sectional shape of the Earth drawn to scale. The planets each travel along an ellipse with the sun at one focus. While the Earth appears to be round when viewed from the vantage point of space it is actually closer to an ellipsoid.

Very eliptical orbit d. It often indicates a user profile. Ellipse - Planets when move around the sun forms an elliptical path.

The earths shape is an ellipsoid As the centuries passed scientists and explorers began to realize that the earth was not a perfect sphere. The Shape of the Earth. The distribution of elevations on the Earth is distinctly bimodal with a peak near 01 krn representing the mean elevation of continents and a peak near -47 krn corresponding to the.

Helpful 0Not Helpful 0 Add a Comment. Earths circumference and diameter differ because its shape is classified as an oblate spheroid or ellipsoid instead of a true sphere. What is the exact shape of earth.

Clarifies how people know that Earth is round and how it is divided into hemispheres. An icon in the shape of a persons head and shoulders. Each observer has the same mass.

Next the semi-minor axis is 63567523 m. Our planet is pudgier at the equator than at the poles by about 70000 feet. The exact shape of earth is Oblate spheroid.

That is why its shape is described as a Geoid. Geoid means an earth-like shape. Its approximate radius is around 6371 KM it usually varies between 6353 and 6384 KM depending from where you measure it.

Earth Science Planet Earth. British scientists led by Isaac Newton theorized that the centrifugal force from the earths rotation would force the earth to spread out from east to west as it rotated about its axis. As we all learn early in school the Earths shape is very close to a sphere.

With this being said the real shape of earth can be described in so many more ways. The exact shape of earth is Oblate spheroid. According to Keplers laws of planetary motion.

Since the Earth is flattened at the poles and bulging at the equator the geometrical figure used in geodesy to most nearly approximate Earths shape is an oblate spheroid. Long ago people thought that it was flat like a coin. A datum describes the shape of the Earth in mathematical terms.

The gravitational force is strongest between the center of the Earth and the observer at location Ais a perfect sphere. This is the most simple way to explain our planets geometrical form. However even an ellipsoid does not adequately describe the Earths unique and ever-changing shape.

For example the WGS84 datum identifies the longest diameter of an ellipse semi-major axis as 63781370 m. The square of the period of the revolution of the.

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