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How did Ptolemy's model of the solar system explain the apparent changes in speed and direction of the planets?(1 point)

Responses

The planets had a significant stellar parallax.
The planets had a significant stellar parallax.

The planets were fixed to nested spheres.
The planets were fixed to nested spheres.

The planets spun on epicycles.
The planets spun on epicycles.

The planets were attached to crystalline surfaces.
The planets were attached to crystalline surfaces.
Question 2
Why was the geocentric model accepted for more than a thousand years?(1 point)
Responses

It correctly explained the motion of the planets.
It correctly explained the motion of the planets.

It correctly explained the distribution of the stars.
It correctly explained the distribution of the stars.

It was confirmed by astronomers using telescopes.
It was confirmed by astronomers using telescopes.

It correctly explained the motion of the planets.
It correctly explained the motion of the planets.
Question 3
Which of the following describe Aristotle's model of the solar system? Select the three correct answers.(2 points)
Responses

Earth is at the center
Earth is at the center

The stars are attached to the outermost sphere.
The stars are attached to the outermost sphere.

Each planet is attached to a crystalline sphere.
Each planet is attached to a crystalline sphere.

Each planet spins on an epicycle.
Each planet spins on an epicycle.

The Sun is at the center.
The Sun is at the center.

The Earth was at a point slightly offset from the center

1 answer

Here are the answers to your questions:

Question 1: How did Ptolemy's model of the solar system explain the apparent changes in speed and direction of the planets?

  • The planets spun on epicycles.

Question 2: Why was the geocentric model accepted for more than a thousand years?

  • It correctly explained the motion of the planets.

Question 3: Which of the following describe Aristotle's model of the solar system? Select the three correct answers.

  • Earth is at the center
  • The stars are attached to the outermost sphere.
  • Each planet is attached to a crystalline sphere.