Astronomy 4

Mr. Harrington's Sections

Reading Overview for Exam 1


NOTES:

  1. This reading overview is not a comprehensive study guide; it is only designed to help you prepare for those parts of the textbook reading that will be covered on Exam 1. Please remember that the reading is not the only thing that will be covered on the exam; you should also be prepared for questions from your lecture notes, from the "pre-questions" from in-class video sessions, and from the material on your class website.
  2. At the end of the "key terms" section of this reading overview is a list of review questions that I think will be particularly useful to you in preparing for this exam. Some of them may be used as the basis for multiple-choice style questions.


Key Terms


Chapter 1

Astronomy

Science

Scientific laws

Hypothesis

Scientific notation

Solar system

Planet

Star

Astronomical Unit (AU)

Light-year (ly)

Galaxy

Milky Way

 

Chapter 2

Geocentric

Celestial Sphere

Celestial Equator

Celestial Poles

Ecliptic

Cosmology

Parallax

Eratosthenes

Apparent Magnitude

Ptolemy

Retrograde Motion

Astrology

Copernicus

Heliocentric

Galileo

Galileo's Discoveries Using a Telescope

 

Chapter 3, Section 1

Johannes Kepler

Tycho Brahe

Kepler's Laws of Planetary Motion
("Kepler's Three Laws")

Orbit

Ellipse

Conic Section

Focus (of an ellipse)

Semimajor axis

Eccentricity

Orbital Period


Suggested Review Questions

Chapter 1 Review Question
What is the difference between our solar system, our galaxy, and the universe?

Chapter 2 Review Questions 
Give two ways to demonstrate that Earth is spherical.
What fraction of the celestial sphere can ever be seen from the North Pole?
What is the difference between the celestial equator and the ecliptic?
What is a constellation? What does it mean when an astronomer says, "I saw a comet in Orion last night"?

Chapter 3 Section 1 Review Questions
State Kepler's three laws in your own words.
Why did Kepler need Tycho Brahe's data to formulate his laws?