ASTRONOMY CSCC - EXAM 1 STUDY
GUIDE WITH COMPLETE SOLUTIONS
Extraterrestrial life is defined to be - Answer️️ -any kind of life found
beyond the Earth
Humanity has been thinking about the possibility of extraterrestrial life -
Answer️️ -throughout human history since the time of the an...
For most of human history it was believed that the Earth was at the center
of the universe. This idea is referred to as - Answer✔️✔️-geocentric
The modern view of our place in the universe suggests that life elsewhere
may be - Answer✔️✔️-common
Apparent retrograde motion occurs when a planet appears to - Answer✔️✔️-
move westward with respect to background stars
The seven days of the week are related to the - Answer✔️✔️-Sun, Moon and
five naked eye planets
The Ptolemaic model has planets moving in - Answer✔️✔️-
smallcircles,thecentersofwhichmoveinalargercircleabouttheEarth
The geocentric model of the Greeks consisted of a - Answer✔️✔️-spherical
Earth at the center of the universe surrounded by a celestial sphere
In the heliocentric (Sun-centered) model, apparent retrograde motion is
due to - Answer✔️✔️-relative motion between the Earth and another planet
in its orbit
One fundamental consequence of the Copernican model which many
people had difficulty accepting at the time it was proposed was that the
Earth - Answer✔️✔️-must be moving through space
According to Kepler's Second Law of planetary motion, a planet moves
fastest in its orbit when it is - Answer✔️✔️-at perihelion
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