Astronomy
What is the Declination of the Celestial Equator?
0 degrees
Which of the following is equivalent to 2.1 x 10^-4?
0.00021
Which of the following eccentricities represents the least elongated ellipse?
0.001
Which of the following eccentricities represents the most circular orbit?
0.002
Which of the following eccentricities represents the most elongated ellipse?
0.10
What is the diameter of the Earth in kilometers?
12,700
The galaxy, M31 in Andromeda, is about 2.5x10^6 LY away. How long does it take for light leaving M31 to reach us?
2.5 million years
Which of the following is the correct expression, in scientific notation, of the number 37,500?
3.75 x 10^4
Which of the following is equivalent to 3.6 x 10^2?
360
What is the distance from the Sun to the nearest star, Proxima Centauri?
4.3 Light Years
About how long ago is the solar system believed to have begun forming?
5 billion years.
How many AUs are there in one Light Year?
63,200
For an observer located at the Earth's North Pole, what would be the approximate altitude of the star Polaris? Recall Polaris is also referred to as the Pole Star, which means that it is located very near the North Celestial Pole.
90 degrees (zenith)
What was the composition of the Solar Nebula? 98% Hydrogen and Helium, 1.4% Hydrogen Compounds and 0.6% Rock and Metal. 75% Gas, 25% Rock and Metal 98% Rock and Metal 1.4% Hydrogen and Helium, 0.6% Hydrogen Compounds. 50% Rock, 50% Metal.
98% Hydrogen and Helium, 1.4% Hydrogen Compounds and 0.6% Rock and Metal.
If a planet formed beyond the frost line, what would be its composition? Rock and Metal and Hydrogen Compounds or Ices Mostly Hydrogen Compounds Mostly Hydrogen and Helium Gas A relatively small amount of Rock and Metal and a larger portion of a combination of Hydrogen Gas and Hydrogen Compounds or Ices.
A relatively small amount of Rock and Metal and a larger portion of a combination of Hydrogen Gas and Hydrogen Compounds or Ices.
In a model of the solar system that was about as large as a college campus, how large would the Sun be?
About the size of a softball.
From most northern hemisphere locations, like Michigan
All of the above are true.
How fast does light travel through space?
All of the above.
Where did the Terrestrial planets form? Inside the Rock/Metal Condensation Line. None of the above. Beyond the Frost Line Between the Rock/Metal Condensation Line and the Frost Line.
Between the Rock/Metal Condensation Line and the Frost Line.
Where did the Comets or Kuiper Belt Objects form? Inside the Rock/Metal Condensation Line. None of the above. Between the Rock/Metal Condensation Line and the Frost Line. Beyond the Frost Line.
Beyond the Frost Line.
Where do the hydrogen compounds exist in solid form? Between the Rock/Metal condensation line and the frost line. Inside the Rock/Metal condensation line. Beyond the frost line. Both a and b above.
Beyond the frost line.
Which planet(s) are never seen to far from the Sun?
Both Mercury and Venus
Where do rock and metal exist in solid form? Between the Rock/Metal condensation line and the frost line. Inside the Rock/Metal condensation line. Beyond the frost line. Both a and c above.
Both a and c above.
Put the events in order, from first to last
Creation of Universe, Formation of Galaxy, Formation of Solar System, Appearance of life
Which is correct in order of size from smallest to largest?
Earth, Sun, Nebula, Galaxy, Universe
According to Kepler's First Law, the orbit of each planet is what shape?
Elliptical
Planetary orbits are
Elliptical.
How did Galileo's observation of Venus support the heliocentric system?
He observed that while Venus was in the crescent phase it appeared larger than when it was in full phase.
What was the significance of the discovery that Jupiter had its own moon system?
It was direct evidence that not all celestial objects orbit the Earth and, therefore, supported the heliocentric model.
If Pluto were a planet, which type would it be, if you consider only its density? Terrestrial Jovian
Jovian
What is the term used for the type of planet that is similar in many ways to Jupiter? Asteroid Terrestrial Jovian Kuiper Belt Object
Jovian
Which planet type tends to be high mass? Terrestrial Jovian
Jovian
Which planet type tends to be low density? Jovian Asteroid Kuiper Belt Object Terrestrial
Jovian
Which planet type tends to have many natural satellites? Terrestrial Jovian
Jovian
Which is the largest planet in the Solar System? Earth Neptune Jupiter Mercury
Jupiter
Which planet is the most massive? Mercury Earth Jupiter Uranus
Jupiter
What is the approximate time of day that a Waning Crescent Moon will set?
Just before Sunset
Which is the smallest planet in the Solar System? Jupiter Mercury Earth Neptune
Mercury
Which planet is the least massive? Mercury Earth Jupiter Uranus
Mercury
If a planet or planetessimal were to form between the Rock/Metal condensation line and the frost line, what would be its overall composition? Mostly Rock and Metal Mostly Hydrogen Compounds Mostly Hydrogen and Helium Gas A relatively small amount of Rock and Metal and a larger portion of a combination of Hydrogen Gas and Hydrogen Compounds or Ices.
Mostly Rock and Metal
In both the geocentric and heliocentric systems, Venus would be expected to go through phases. Which of the following distinguishes between the two systems?
NOT: In the heliocentric system, Venus would occasionally be near full phase and would appear larger at that time. In the geocentric system, Venus would never be near full phase.
What phase of the Moon will result when the Moon passes between the Sun and the earth?
New
Is a Full Moon visible during the day?
No
Which components exist in solid form inside the Rock/Metal condensation line? (By 'inside' we mean closer to the center or closer to the protosun.) Rock and Metal Hydrogen Compounds Hydrogen and Helium None
None
Where does hydrogen and helium gas exist in solid form? Between the Rock/Metal condensation line and the frost line. Beyond the frost line. Both a and b above. None of the above.
None of the above
Who invented the telescope?
None of the above.
What is the name given to the smaller objects that eventually were drawn together to form planets? Planetesimals Protosun Protoplanets Preplanetary Objects
Planetesimals
Which of the following solar system objects has the most elongated orbit?
Pluto
Which motion will change the pole-star over time?
Precession
What is the name given to the massive, hot object forming at the center of the Solar Nebula, prior to becoming a star? Star Planet Protosun Pressuresun
Protosun
The two coordinates that describe the location of an object on the Celestial Sphere are
Right Ascension and Declination
What is the primary composition for the Terrestrial planets? Rock and Metal A relatively small amount of Rock and Metal plus a combination of Hydrogen Compounds and Hydrogen and Helium Gases None of the above. Hydrogen Compounds or Ices
Rock and Metal
What were the three major components of the solar nebula? Rock, Metal, Hydrogen Gas Rock and Metal, Hydrogen Compounds, Hydrogen and Helium Gas. Hydrogen Compounds, Hydrogen Gas, Helium Gas Rock/metal, Hydrogen Compounds, Water.
Rock and Metal, Hydrogen Compounds, Hydrogen and Helium Gas.
Approximately what time does a Full Moon rise?
Sunset
If Pluto were a planet, which type would it be, if you consider only its number of satellites? Terrestrial Jovian
Terrestrial
If Pluto were a planet, which type would it be, if you consider only its size? Terrestrial Jovian
Terrestrial
Which planet type tends to be high-density? Terrestrial Jovian
Terrestrial
Which planet type tends to be low mass? Terrestrial Jovian
Terrestrial
Which planet type tends to be small? Terrestrial Jovian
Terrestrial
What two conditions must be met in order for a Solar Eclipse to occur?
The Moon must be in the New Moon phase and on the Ecliptic Plane.
If Earth were the size of a basketball, how big would the moon be? How far away would it be?
The Moon would be about the size of a tennis ball and would be 30 feet away.
How large is the observable universe?
The observable universe has a radius of about 14 billion LY.
What phase of the Moon will set at noon?
Third Quarter
Is a Third Quarter Moon visible during the day?
Yes
Can the Moon ever be seen during the day?
Yes, about half the time.
Which is longer
a solar day
Gravitational Force depends
directly on mass and inversely on distance (squared)
To account for the apparent retrograde motion of the planets, Ptolemy included ____________ in his model of the Universe.
epicycles
When planets are closer to the sun, they orbit
faster.
The model in which Earth occupies the center of the Universe is called the ____________ model.
geocentric
Tycho Brahe is best known for
his accurate and comprehensive astronomical and planetary observations.
The scale of the Universe is measured in
light-years
Epicycles explain
retrograde motion in the geocentric model.
The sun's apparent path through the sky is called
the ecliptic.
The force of gravity is directly proportional to _________________, in accordance with Newton's Universal Law of Gravitation.
the product of the masses of the two objects.
Which is not true about the celestial sphere?
west to east (its east to west)
