Question 1

The planet ________ may have been the result of the merger of two bodies.

Accepted Answer

The answer of The planet ________ may have been the...

Question 2

Some type of catastrophe is likely needed to explain the highly tilted rotation axis of Uranus.

Accepted Answer

A) True 
 B)False

Question 3

Concerning our solar nebula theory,the presence of so many "hot Jupiters" gives us problems with how they can form that close to their star.

Accepted Answer

A) True 
 B)False

Question 4

According to the Solar Nebula theory,planets:

Accepted Answer

A)  should be randomly oriented to their star's equator. 
B)  will revolve opposite the star's rotation. 
C)  should be a common result of star formation. 
D)  should be extremely rare. 
E)  should orbit perpendicular to their star's equator. 
A)  should be randomly oriented to their star's equator. 
B)  will revolve opposite the star's rotation. 
C)  should be a common result of star formation. 
D)  should be extremely rare. 
E)  should orbit perpendicular to their star's equator.

Question 5

The ________ theory is thought to explain the formation of our solar system.

Accepted Answer

The answer of The ________ theory is thought to explain...

Question 6

Which of the following are irregularities in our solar system that must be explainable in models of planetary formation?

Accepted Answer

A)  Venus' low rate of rotation 
B)  Mars' north-south asymmetry 
C)  the tilt of Uranus' rotation axis 
D)  binary Kuiper Belt objects 
E)  All of the above 
A)  Venus' low rate of rotation 
B)  Mars' north-south asymmetry 
C)  the tilt of Uranus' rotation axis 
D)  binary Kuiper Belt objects 
E)  All of the above

Question 7

Astronomers expect that stars with multiple planets orbiting them are rare.

Accepted Answer

A) True 
 B)False

Question 8

Around other suns,we have found Jupiters where Mercury is in our solar system.

Accepted Answer

A) True 
 B)False

Question 9

The Kepler and CoRoT missions use which technique to detect planet candidates?

Accepted Answer

A)  radial velocity measurements 
B)  direct imaging 
C)  measurements of transverse motion 
D)  planetary transits 
A)  radial velocity measurements 
B)  direct imaging 
C)  measurements of transverse motion 
D)  planetary transits

Question 10

None of the other stars yet studied has more than one planet orbiting it.

Accepted Answer

A) True 
 B)False

Question 11

Discuss the important features that allow space-based telescopes to search for transiting exoplanets.

Accepted Answer

Space-based telescopes are exceptionally

Question 12

"Catastrophes" are NOT needed to explain:

Accepted Answer

A)  the exceptionally large nickel-iron core of Mercury. 
B)  the asteroid belt. 
C)  our Moon. 
D)  the tilt of Uranus. 
E)  the appearance of Miranda's surface. 
A)  the exceptionally large nickel-iron core of Mercury. 
B)  the asteroid belt. 
C)  our Moon. 
D)  the tilt of Uranus. 
E)  the appearance of Miranda's surface.

Question 13

It is expected that most of the planet candidates found by the Kepler mission will eventually be confirmed.

Accepted Answer

A) True 
 B)False

Question 14

The Kepler mission uses the ________ technique to detect exoplanets.

Accepted Answer

The answer of The Kepler mission uses the ________ technique...

Question 15

Why has direct imaging found so few exoplanets?

Accepted Answer

A)  Direct imaging is only possible using military satellites. 
B)  Direct imaging only works if the planet is orbiting a brown dwarf. 
C)  Only a few attempts have been made to directly image an extrasolar planet. 
D)  Exoplanets are faint and are usually close to their parent stars. 
A)  Direct imaging is only possible using military satellites. 
B)  Direct imaging only works if the planet is orbiting a brown dwarf. 
C)  Only a few attempts have been made to directly image an extrasolar planet. 
D)  Exoplanets are faint and are usually close to their parent stars.

Question 16

A planet is located orbiting another star and its radius is about 3 times that of the Earth.It is:

Accepted Answer

A)  a brown dwarf. 
B)  a Jupiter. 
C)  a Neptune. 
D)  a super-Earth. 
E)  an Earth. 
A)  a brown dwarf. 
B)  a Jupiter. 
C)  a Neptune. 
D)  a super-Earth. 
E)  an Earth.

Question 17

Beyond our own solar system,the planets found to date have tended to be:

Accepted Answer

A)  Kuiper Belt objects, far from the glare of their suns. 
B)  large jovians far from stars like our Sun. 
C)  large jovians with orbits more like terrestrial planets. 
D)  terrestrials very close to their star, and transiting its disk. 
E)  imaginary, with no present proof that they really exist. 
A)  Kuiper Belt objects, far from the glare of their suns. 
B)  large jovians far from stars like our Sun. 
C)  large jovians with orbits more like terrestrial planets. 
D)  terrestrials very close to their star, and transiting its disk. 
E)  imaginary, with no present proof that they really exist.

Question 18

To reach the nearest known exoplanet using current technology would take:

Accepted Answer

A)  a matter of months. 
B)  4.4 years. 
C)  about a century. 
D)  about 40,000 years. 
E)  close to a million years. 
A)  a matter of months. 
B)  4.4 years. 
C)  about a century. 
D)  about 40,000 years. 
E)  close to a million years.

Question 19

Explain how the Doppler Effect has been used to detect invisible planets orbiting other Sun-like stars.

Accepted Answer

The Jupiter-like planets are massive eno

Question 20

Describe an example of catastrophic creation in our solar system.

Accepted Answer

The large impact hyp

Exam 15: Exoplanets: Planetary Systems Beyond Our Own

The planet ________ may have been the result of the merger of two bodies.

Some type of catastrophe is likely needed to explain the highly tilted rotation axis of Uranus.

Concerning our solar nebula theory,the presence of so many "hot Jupiters" gives us problems with how they can form that close to their star.

According to the Solar Nebula theory,planets:

The ________ theory is thought to explain the formation of our solar system.

Which of the following are irregularities in our solar system that must be explainable in models of planetary formation?

Astronomers expect that stars with multiple planets orbiting them are rare.

Around other suns,we have found Jupiters where Mercury is in our solar system.

The Kepler and CoRoT missions use which technique to detect planet candidates?

None of the other stars yet studied has more than one planet orbiting it.

Discuss the important features that allow space-based telescopes to search for transiting exoplanets.

"Catastrophes" are NOT needed to explain:

It is expected that most of the planet candidates found by the Kepler mission will eventually be confirmed.

The Kepler mission uses the ________ technique to detect exoplanets.

Why has direct imaging found so few exoplanets?

A planet is located orbiting another star and its radius is about 3 times that of the Earth.It is:

Beyond our own solar system,the planets found to date have tended to be:

To reach the nearest known exoplanet using current technology would take:

Explain how the Doppler Effect has been used to detect invisible planets orbiting other Sun-like stars.

Describe an example of catastrophic creation in our solar system.

Charting the Heavens: The Foundations of Astronomy

The Copernican Revolution: The Birth of Modern Science

Radiation: Information from the Cosmos

Spectroscopy: The Inner Workings of Atoms

Telescopes: The Tools of Astronomy

The Solar System: Comparative Planetology and Formation Models

Earth: Our Home in Space

The Moon and Mercury: Scorched and Battered Worlds

Venus: Earth's Sister Planet

Mars: A Near Miss for Life?

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

Uranus and Neptune: The Outer Worlds of the Solar System

Solar System Debris: Keys to Our Origin

The Sun: Our Parent Star

The Stars: Giants,Dwarfs,and the Main Sequence

The Interstellar Medium: Gas and Dust among the Stars

Star Formation: A Traumatic Birth

Stellar Evolution: The Life and Death of a Star

Stellar Explosions: Novae,Supernovae,and the Formation of the Elements

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: A Spiral in Space

Galaxies: Building Blocks of the Universe

Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos

Cosmology: The Big Bang and the Fate of the Universe

The Early Universe: Toward the Beginning of Time

Life in the Universe: Are We Alone?

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