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Lecture 1

Astronomy 2021A/B Lecture Notes - Lecture 1: Apparent Retrograde Motion, Nicolaus Copernicus, Astronomical ObjectExam


Department
Astronomy
Course Code
ASTR 2021A/B
Professor
Martin Zinke- Allmang
Lecture
1

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UNIT QUIZ 1 — ASTRONOMY 2021
From Chapter 1:
Question 1:
The possibility of extraterrestrial life was first considered
A) after the invention of the telescope
B) only during the past few decades
C) at the turn of the 20th century
D) by Nicolas Copernicus
E) thousands of years ago during ancient times
Question 2:
The astronomical object in our sky which is directly con-
nected to the tides is the
A) the Sun
B) the closest planets, Venus and Mars
C) nearest star
D) most massive planet in our solar system, Jupiter
E) the Moon
Question 3:
The ancient Greek approach to understanding the universe
relied PRIMARILY on
A) observations
B) experiments
C) thought and intuition
D) preconceived ideas
E) mythology
Question 4:
In the natural sciences, conceptual representations of observ-
ed phenomena are referred to as
A) facts
B) hypotheses
C) models
D) beliefs
Question 5:
Which of the following is NOT a planet visible to the naked
eye?
A) Saturn
B) Neptune
C) Mercury
D) Jupiter
E) Mars
Question 6:
Most of the time, planets are observed to
A) be stationary with respect to background stars
B) move eastward with respect to background stars
C) move due south with respect to background stars
D) move westward with respect to background stars
E) move due north with respect to the background stars
Question 7:
In the heliocentric model, apparent retrograde motion is due
to
A) relative motion between the Earth and another planet in
its orbit
B) the Earth reversing the direction of its orbit about the Sun
C) a planet moving in a small circle, the centrw of which
moves in a larger circle about the Earth
D) a planet reversing the direction of its orbit about the Sun
Question 8:
Stellar parallax provides concrete proof that the
A) Earth rotates on its axis
B) Earth is roughly spherical
C) the Sun moves around the Earth
D) Moon moves around the Earth
E) Earth moves around the Sun
Question 9:
Even though the heliocentric model of Copernicus had many
advantages over the Ptolemaic model, it suffered from the
assumption that the
A) planets moved in ellipses about the Sun
B) planets moved in perfect circles about the Sun
C) planets moved in perfect circles about the Earth
D) Earth was not rotating on its axis
Question 10:
Kepler's Second Law of planetary motion states that
A) an imaginary line joining the Sun and planet sweeps out
equal areas in equal times
B) the further a planet is from the Sun, the faster it moves in
its orbit
C) the further a planet is from the Sun, the slower it moves
in its orbit
D) the orbits of planets are ellipses
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