Ptolemy's model of the solar system explained the apparent changes in speed and direction of the planets by stating that the planets spun on epicycles. This means that each planet moved in small circular orbits (epicycles) while simultaneously orbiting around a larger circle (the deferent), allowing for the observed complexities in their motion, including retrograde motion.
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 were attached to crystalline surfaces. The planets were attached to crystalline surfaces. The planets spun on epicycles. The planets spun on epicycles. The planets had a significant stellar parallax. The planets had a significant stellar parallax. The planets were fixed to nested spheres.
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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 described the solar system. It correctly described the solar system. It correctly explained the distribution of the stars. It correctly explained the distribution of the stars. It was confirmed by astronomers using telescopes.
The geocentric model was accepted for more than a thousand years primarily because it correctly explained the motion of the planets as observed from Earth, and its predictions matched the observational data available at the time. Additionally, it was consistent with the philosophical and religious beliefs of the era, which placed Earth at the center of the universe.
Which of the following describe Aristotle's model of the solar system? Select the three correct answers.(2 points) Responses Each planet spins on an epicycle. Each planet spins on an epicycle. The stars are attached to the outermost sphere. The stars are attached to the outermost sphere. The Sun is at the center. The Sun is at the center. Earth is at the center. Earth is at the center. The Earth was at a point slightly offset from the center. The Earth was at a point slightly offset from the center. Each planet is attached to a crystalline sphere.
The correct answers that describe Aristotle's model of the solar system are:
- The stars are attached to the outermost sphere.
- Earth is at the center.
- Each planet is attached to a crystalline sphere.
Aristotle's geocentric model placed Earth at the center of the universe, with celestial bodies (including stars) moving on crystalline spheres around it.
Which of the following is the best way to learn the material in a lesson and prepare for a quick check? (1 point) Responses Write down every detail of the lesson into notes. Write down every detail of the lesson into notes. None of the given are the best ways to learn the material. None of the given are the best ways to learn the material. Use the lesson outline found in the course resources to organize important information and review for the quick check. Use the lesson outline found in the course resources to organize important information and review for the quick check. Read through the lesson at least two times right before you take the quick check., but don't worry about taking notes or completing the built in practices.
The best way to learn the material in a lesson and prepare for a quick check is to use the lesson outline found in the course resources to organize important information and review for the quick check. This approach allows you to focus on key concepts and important details effectively.
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