Solar System Online Practice

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Question
What distinguishes the modern model of the solar system from all previous models? (1 point)
Responses

In the modern model, the orbits are elliptical.
In the modern model, the orbits are elliptical.

In the modern model, the Earth is at the center of the solar system.
In the modern model, the Earth is at the center of the solar system.

In the modern model, the orbits are circular.
In the modern model, the orbits are circular.

In the modern model, the Sun is at the center of the solar system.

1 answer

The correct response is:

In the modern model, the orbits are elliptical.

The modern model of the solar system, based on Kepler's laws, describes planets moving in elliptical orbits around the Sun, which is at the center of the solar system. This contrasts with earlier models, which often placed the Earth at the center or assumed circular orbits.

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