QUESTION 1 1. After examining the Ptolemy model, Nicolaus Copenicus published a
ID: 304918 • Letter: Q
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QUESTION 1 1. After examining the Ptolemy model, Nicolaus Copenicus published a book on his deathbed arguing against Ptolemy's epicycles, stating that they could not be real. The Copernicus model later became known as the model . a heliocentric b.copernicentric c.plutocentric d.geocentric QUESTION 2 1 What happens during a lunar eclipse in relation to the alignment of the Sun, the moon, and Earth? a Earth's moon blocks sunlight from reaching the Earth b.Earth blocks sunlight from reaching Earth's moon. c.The Sun blocks moonlight from reaching Earth's moon d. Earth blocks moonlight from reaching the Sun QUESTION 4 1. The primary difference between a total solar eclipse and a partial solar eclipse is that a solar eclipse occurs when Earth passes through the Moon's umbra and the Sun becomes -obscured a partial, partially b total; partially c partial, completely d total, completely QUESTION 6 1. What problem with the geocentric model led Ptolemy to invent epicycles? a eclipse motion b ecliptic motion c.retrograde motion d prograde motion QUESTION 7 1. In relationship to Earth's orbit, the ecliptic plane can be visualized as a(n)surface that contains the a physical; plane of Earth's orbit b.physical lunar eclipse of Earth's orbit c imaginary path of our Sun. d.imaginary, ellipse of Earth's orbitExplanation / Answer
Question1. a - Heliocentric model
Copernicus model had sun at the center of the solar system, hence it was called heliocentric model.
Question2. b - Earth blocks sunlight from reaching Moon.
During lunar eclipse Earth gets in between sun and moon blocking light from sun reaching earth and the moon appears dark.
Question4. d - total; completely
Total solar eclipse occurs when the moon casts the darkest part of its shadow - the umbra on Earth.
Question6. c - retrograde motion.
The epicycles are invented to account for the retrograde motion of the planets, ie. they appeared to speed up and slow down from time to time. The epicycles were so effective in calculating this retrograde motion of planets.
Question7. c - imaginary; ellipse of Earth's orbit
The ecliptic plane is defined as the imaginary plane that contains the Earth's orbit around the sun.
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