Exam 21: Origin of Modern Astronomy

One of the discoveries that led to the modern view of the solar system was that the orbits of the planets are ________.

Discuss the phases of the moon and how they relate to the motions of the Earth and Moon. Also, how are eclipses of the Moon and Sun related to these motions?

Any variance in the orbit of a planet from its predicted path is called a(n) ________.

In the Ptolemaic (Greek) model of the universe, the ________.

Galileo believed in a Sun-centered view of the universe.

Galileo discovered Jupiter's four largest moons.

Earth is closest to the Sun in July.

When Earth is the farthest from the Sun, it is said to be in the perihelion position.

Tycho Brahe discovered the three laws of planetary motion.

According to the Ptolemaic (Greek) model of the universe, how many "heavenly" bodies could be observed wandering along the background of stars?

The apparent shift in the position of a nearby star when viewed from extreme points in Earth's orbit six months apart is called ________.

According to the Ptolemaic (Greek) system, the planets have circular orbits.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Lunar eclipses last longer than solar eclipses.

The distance from Earth to the Sun is used to measure distances in the solar system and is called a light year.

Galileo observed several features using the telescope. Which one of the following did he NOT discover?

One of the discoveries which led to the modern view of the solar system was that the orbits of the planets are ________.

The planets, Moon, and the Sun lie along nearly the same plane and therefore move along the same region of the sky that is called the ________.

A very slow motion of Earth's axis that requires 26,000 years to complete is called ________.

The apparent path of the Sun upon the celestial sphere is called the ________.