The Solar System
10th Edition
ISBN: 9781337672252
Author: The Solar System
Publisher: Cengage
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Textbook Question
Chapter 4, Problem 10RQ
Describe in detail the motions of the planets according to Ptolemy.
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Proof of why the Copernican model is more compatible with explaining the solar system than the Ptolemaic model (Think of specific Galilean observations & retrograde motion)
Explain how did Kepler discovered his Laws of Planetary Motion.
The geocentric model, in all of its complexity, survived scientific scrutiny for almost 1,400 years. However, in modern
astronomy, scientists seek to explain the natural and physical world we live in as simply as possible. The complexity of
Ptolemy's model was an indicator that his theory was inherently flawed. Why, then, was the geocentric model the leading
theory for such a long time, even though the heliocentric model more simply explained the observed motions and
brightness of the planets?
Check all that apply.
☐ The geocentric model conformed to both the philosophical and religious doctrines of the time.
☐ The heliocentric model did not make noticeably better predictions than the geocentric model.
From Earth, all heavenly bodies appeared to circle around a stationary Earth.
The complexity of the geocentric model was appealing to most ancient astronomers.
Ancient astronomers did not observe stellar parallax, which would have provided evidence in favor of the heliocentric model.
Chapter 4 Solutions
The Solar System
Ch. 4 - Prob. 1RQCh. 4 - Why did early human cultures observe astronomical...Ch. 4 - Prob. 3RQCh. 4 - Name one example each of a famous politician,...Ch. 4 - Why did Plato propose that all heavenly motion was...Ch. 4 -
On what did Plato base his knowledge? Was it...Ch. 4 - Which two-dimensional (2D) and three-dimensional...Ch. 4 - Prob. 8RQCh. 4 - In Ptolemys model, how do the epicycles of Mercury...Ch. 4 - Describe in detail the motions of the planets...
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 -
When Tycho observed the new star of 1572, he...Ch. 4 - Assume the night is clear and the Moons phase is...Ch. 4 - Does Tychos model of the Universe explain the...Ch. 4 - Name an empirical law. Why is it considered...Ch. 4 -
How does Kepler’s first law of planetary motion...Ch. 4 - Prob. 19RQCh. 4 - Prob. 20RQCh. 4 - Prob. 21RQCh. 4 - Prob. 22RQCh. 4 - Prob. 23RQCh. 4 - Prob. 24RQCh. 4 - Prob. 25RQCh. 4 - Prob. 26RQCh. 4 - Prob. 27RQCh. 4 - Prob. 1PCh. 4 -
If you lived on Mars, which planets would exhibit...Ch. 4 - Prob. 3PCh. 4 - If a planet has an average distance from the Sun...Ch. 4 - If a space probe is sent into an orbit around the...Ch. 4 - Prob. 6PCh. 4 - An object takes 29.5 years to orbit the Sun. What...Ch. 4 -
One planet is three times farther from the Sun...Ch. 4 - Galileos telescope showed him that Venus has a...Ch. 4 - Which is the phase of Venus when it is closest?...Ch. 4 - Prob. 11PCh. 4 - Prob. 1SPCh. 4 - Prob. 2SPCh. 4 - Prob. 1LLCh. 4 - Prob. 2LLCh. 4 - What three astronomical objects are represented...Ch. 4 - Use the figure below to explain how the Ptolemaic...
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- Why did Ptolemy have to introduce multiple circles of motion for the planets instead of a single, simple circle to represent the planet’s motion around the Sun?arrow_forwardIn Ptolemys model, how do the epicycles of Mercury and Venus differ from those of Mars, Jupiter, and Saturn?arrow_forwardIn Ptolemys model, which of the followingepicycle, equant, or deferenttravels in uniform circular motion as viewed from a particular point? Name and describe that point. Are these uniform circular motions at the same speeds and in the same directions?arrow_forward
- Why did Copernicus want to develop a completely new system for predicting planetary positions? Provide two reasons.arrow_forwardWhat two factors made it difficult, at first, for astronomers to choose between the Copernican heliocentric model and the Ptolemaic geocentric model?arrow_forwardHow did Hipparchus discover the wobble of Earth’s axis, known as precession?arrow_forward
- Why did Kepler need Tycho Brahe’s data to formulate his laws?arrow_forwardPtolemy model of the solar system was by far the simplest and most elegant model. true or falsearrow_forwardWhich of the following was used by Aristotle to prove the shape of the Earth?Which of the following refers to the science of studying the outer space and other celestial objects?Which of the following refers to the sun-centered model of the universe?Which of the following refers to the earth-centered model of the universe?Which of the following Astronomer was sentenced to death by church because of his opposing views and theories about the center of the universe?Which of the following was proposed by Ptolemy to fix the anomalies inAristotelian model of the universe?Which of the following models of the universe where the celestial planets revolve around the sun while the sun revolves around the earth?Which of the following Astronomers observed that Mars does not move incircles?Which of the following refers to the term where other celestial bodies/objects moves around the earth in a spherical manner?Which of the following terms refer to the part Pythagorean universe where the Greek Gods…arrow_forward
- Describe three propositions, now known as Kepler’s laws of planetary motion?arrow_forwardIn 3-5 sentences, describe how Copernicus developed his model of the solar system. In your answer, include an explanation for why his model was, or was not, readily accepted at the time.arrow_forwardExplain how Copernicus’s heliocentric model if the solar system explained the retrograde motion if the planets compared to Ptolemy’s geocentric model.arrow_forward
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