ASTR 1304 INTRODUCTION TO THE SOLAR SYSTEM
Credit: 3 (3 lecture)
Eagle Online learning system
An introduction to astronomy, emphasizing the physical law
1. What was the major problem for the solar nebula hypothesis that was proposed by
Pierre-Simon de Laplace?
a. The sun contains little of the angular momentum of the solar system.
2. How do astronomers believe the sun came to have less angular momentum th
What effect does the formation of negative hydrogen ions in the sun's
photosphere have on solar observations?
a. The extra electron absorbs different wavelength photons making the
Here and Now
In this chapter, you will consider three important questions about
Where are you in the universe?
How does human history fit into the history of the Universe?
Why study astronomy?
1-1 Where are you?
A USERS GUIDE TO
The previous chapter took you on a cosmic zoom through space and time. That quick preview prepared you
for the journey to come. In this chapter you can begin your exploration by viewing the sky from Earth; as
HERE AND NOW
Where Are You?
When Is Now?
Why Study Astronomy?
How Do We Know? 1-1: The Scientific Method
What Are We? Participants
As you study astronomy, you will learn about yourself. You are a planet-walk
ASTR 1304 Chapter 1 and 2 Quiz
A galaxy contains
c. large amounts of gas, dust, and stars.
The average distance from Earth to the sun is
e. 1 AU
3.0105 times 1.5109 is equal to
If light takes 8 minutes to reach Earth from the sun and 5.3 hours
According to Aristotle, where is the proper place of the classical elements
earth and water? That is, what location do they seek?
a. At the center of the earth and universe
Why did Newton conclude that some force had to pull the moon toward Earth?
What type of meteorite is the most common at about 80% of all falls?
How do observations of meteor showers reveal one of the sources of
Why does the same side of the moon always face Earth?
a. The moon rotates in the same direction that it revolves and the moon's
period of rotation is equal to its orbital period.
How do we know that Copernicus is a young impact crater?
a. It h
1. How many miles does a runner travel in a five-kilometer race?
a. About three miles
2. North is up in this figure. Can we tell whether the daylight and darkness line
at the right is the sunset line or the sunrise line?
a. It is the sunset
Which of the following statements is true about the Celsius and Kelvin (Absolute) temperature
a. The size of one degree is the same on both scales.
When the sun is high above t
1. The visible part of the electromagnetic spectrum can be divided into seven color
bands: red, orange, yellow, green, blue, indigo, and violet (from long to short
wavelength). A single photon of which of these colors has the greatest amount of
Earth's interior can be divided up into four zones: the inner core, the outer
core, the mantle, and the crust. Which of these zones has the lowest density?
1. Which statement below best describes the motion of the moon relative to the
a. The moon moves Eastward relative to the stars about 13 degrees per
2. How does one cycle of the moons motion relative to the stars compare to one
cycle of the mo