Question 1

What astronomical object is the most important source for determining the age of our Solar System?

Accepted Answer

A)   lunar rocks
B)   Earth core samples
C)   meteorites
D)   meteors
E)   asteroidsF) D) and E)
G) A) and E)

Question 2

During Solar System formation, solid particles contracted from the gas of the nebula as it cooled.

Accepted Answer

A) True 
 B)False

Question 3

Which term is described as small, icy bodies that orbit the Sun just beyond Neptune?

Accepted Answer

A)   Kuiper belt objects
B)   asteroid belt objects
C)   Oort cloud objects
D)   Jovian belt objects
E)   Neptunian belt objectsF) A) and B)
G) A) and C)

Question 4

Asteroids are believed to be debris left over from the failure of a planet to form at a distance of about 3 AU from the Sun.

Accepted Answer

A) True 
 B)False

Question 5

Which is the correct order of planetary object class during their formation?

Accepted Answer

A)   planetesimals, protoplanets, and planets
B)   planets, planetesimals, and protoplanets
C)   planetesimals, planets, and planetettes
D)   protoplanets, planetesimals, and planets
E)   planetesimals, planetettes, and planetsF) C) and D)
G) A) and B)

Question 6

Once a protoplanet reached a large mass, what is the next step for it to formally grow into a planet?

Accepted Answer

A)   gravitational collapse
B)   expanding
C)   accretion
D)   condensation
E)   slowing momentumF) B) and D)
G) A) and C)

Question 7

Which space observatory uses the transit method to detect extrasolar planets?

Accepted Answer

A)   Hubble
B)   Kepler
C)   Spitzer
D)   Chandra
E)   VoyagerF) A) and E)
G) C) and E)

Question 8

The passing star hypothesis suggests that planets form in the rotating disks of gas and dust around young stars.

Accepted Answer

A) True 
 B)False

Question 9

Descartes' hypothesis of solar system formation was problematic because he did not understand the ____.

Accepted Answer

A)   involvement of condensation
B)   involvement of contraction
C)   difference in the planets
D)   involvement of gravity
E)   gaseous properties of the SunF) C) and E)
G) B) and C)

Question 10

What are the small bits of rock and metal that collide with Earth's atmosphere?

Accepted Answer

A)   meteors
B)   comets
C)   asteroids
D)   meteorites
E)   meteoroidsF) C) and D)
G) A) and D)

Question 11

Match between columns
                        Premises: small, irregular icy bodies found orbiting beyond Neptune
the inner four rocky planets of our Solar System
piece of dust or tiny rock burning in a planet's atmosphere
extrasolar Jovian worlds that have been found orbiting close to their parent stars
planets orbiting stars outside of our Solar System
the outer four gaseous planets of our Solar system
icy bodies with "tails" on a extreme elliptical orbit
small, irregular rocky bodies mostly found between Mars and Jupiter
coalescing planetesimals that eventually become planets
solid bits of matter that will eventually be made into protoplanets

Accepted Answer

The Answer of meteor and Kuiper belt objects and Planetesimals is...

Question 12

The _______________ of a radioactive substance is the time it takes for half of the parent isotope atoms to decay into daughter isotope atoms.

Accepted Answer

The answer of The _______________ of a radioactive substance is...

Question 13

During the growth of planetesimals to protoplanets, could the planetesimals have collided into one another? Why or why not?

Accepted Answer

If planetesimals had collided at orbital...

Question 14

The most important source for determining the age of the Solar System is by sampling a planet's core.

Accepted Answer

A) True 
 B)False

Question 15

Kuiper belt objects are small, rocky bodies orbiting beyond Mars.

Accepted Answer

A) True 
 B)False

Question 16

The first extrasolar planets discovered are small and have long orbital periods.

Accepted Answer

A) True 
 B)False

Question 17

Why do Terrestrial planets not have rings?

Accepted Answer

A)   Terrestrial planets rotate in the opposite direction of the Sun.
B)   Terrestrial planets do not have large enough masses to retain particles in rings.
C)   Terrestrial planets have a core too rich in heavy metals to retain rings.
D)   Terrestrial planets are too close to the Sun to support a ring system.
E)   Terrestrial planets are not gaseous bodies.F) B) and E)
G) B) and C)

Question 18

According to solar nebula theory, what is the first step in planetesimal formation?

Accepted Answer

A)   heating
B)   flattening
C)   accretion
D)   condensation
E)   gravitational collapseF) A) and D)
G) A) and E)

Question 19

Explain the steps involved in clearing a nebular of its interstellar material that stopped planetary formation.

Accepted Answer

The most important of these internal pro...

Question 20

Which hypothesis was out-ruled by the solar nebular theory?

Accepted Answer

A)   planet accretion hypothesis
B)   imploding cloud hypothesis
C)   passing star hypothesis
D)   condensation hypothesis
E)   catastrophic hypothesisF) B) and E)
G) A) and C)

Exam 19: Origin of the Solar System and Extrasolar Planets

Asteroids are believed to be debris left over from the failure of a planet to form at a distance of about 3 AU from the Sun.

Correct Answer
verified

Which hypothesis was out-ruled by the solar nebular theory?

Correct Answer
verified

Why do Terrestrial planets not have rings?

Correct Answer
verified

Which is the correct order of planetary object class during their formation?

Correct Answer
verified

Explain the steps involved in clearing a nebular of its interstellar material that stopped planetary formation.

Correct Answer
verified
The most important of these internal pro...
View Answer

What are the small bits of rock and metal that collide with Earth's atmosphere?

Correct Answer
verified

What astronomical object is the most important source for determining the age of our Solar System?

Correct Answer
verified

During the growth of planetesimals to protoplanets, could the planetesimals have collided into one another? Why or why not?

Correct Answer
verified
If planetesimals had collided at orbital...
View Answer

The first extrasolar planets discovered are small and have long orbital periods.

Correct Answer
verified

Kuiper belt objects are small, rocky bodies orbiting beyond Mars.

Correct Answer
verified

Once a protoplanet reached a large mass, what is the next step for it to formally grow into a planet?

Correct Answer
verified

The most important source for determining the age of the Solar System is by sampling a planet's core.

Correct Answer
verified

Descartes' hypothesis of solar system formation was problematic because he did not understand the ____.

Correct Answer
verified

Which term is described as small, icy bodies that orbit the Sun just beyond Neptune?

Correct Answer
verified

Match the planetary body with its definition.

During Solar System formation, solid particles contracted from the gas of the nebula as it cooled.

Correct Answer
verified

According to solar nebula theory, what is the first step in planetesimal formation?

Correct Answer
verified

Which space observatory uses the transit method to detect extrasolar planets?

Correct Answer
verified

The passing star hypothesis suggests that planets form in the rotating disks of gas and dust around young stars.

Correct Answer
verified

The _______________ of a radioactive substance is the time it takes for half of the parent isotope atoms to decay into daughter isotope atoms.

Correct Answer
verified

Exam 19: Origin of the Solar System and Extrasolar Planets

Asteroids are believed to be debris left over from the failure of a planet to form at a distance of about 3 AU from the Sun.

Correct AnswerverifiedShow Answer

Which hypothesis was out-ruled by the solar nebular theory?

Correct AnswerverifiedShow Answer

Why do Terrestrial planets not have rings?

Correct AnswerverifiedShow Answer

Which is the correct order of planetary object class during their formation?

Correct AnswerverifiedShow Answer

Explain the steps involved in clearing a nebular of its interstellar material that stopped planetary formation.

Correct AnswerverifiedThe most important of these internal pro...View AnswerShow Answer

What are the small bits of rock and metal that collide with Earth's atmosphere?

Correct AnswerverifiedShow Answer

What astronomical object is the most important source for determining the age of our Solar System?

Correct AnswerverifiedShow Answer

During the growth of planetesimals to protoplanets, could the planetesimals have collided into one another? Why or why not?

Correct AnswerverifiedIf planetesimals had collided at orbital...View AnswerShow Answer

The first extrasolar planets discovered are small and have long orbital periods.

Correct AnswerverifiedShow Answer

Kuiper belt objects are small, rocky bodies orbiting beyond Mars.

Correct AnswerverifiedShow Answer

Once a protoplanet reached a large mass, what is the next step for it to formally grow into a planet?

Correct AnswerverifiedShow Answer

The most important source for determining the age of the Solar System is by sampling a planet's core.

Correct AnswerverifiedShow Answer

Descartes' hypothesis of solar system formation was problematic because he did not understand the ____.

Correct AnswerverifiedShow Answer

Which term is described as small, icy bodies that orbit the Sun just beyond Neptune?

Correct AnswerverifiedShow Answer

Match the planetary body with its definition.

During Solar System formation, solid particles contracted from the gas of the nebula as it cooled.

Correct AnswerverifiedShow Answer

According to solar nebula theory, what is the first step in planetesimal formation?

Correct AnswerverifiedShow Answer

Which space observatory uses the transit method to detect extrasolar planets?

Correct AnswerverifiedShow Answer

The passing star hypothesis suggests that planets form in the rotating disks of gas and dust around young stars.

Correct AnswerverifiedShow Answer

The _______________ of a radioactive substance is the time it takes for half of the parent isotope atoms to decay into daughter isotope atoms.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The most important of these internal pro...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
If planetesimals had collided at orbital...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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