Question 1

Before it arrived in orbit about Jupiter, the Galileo spacecraft flew past

Accepted Answer

A)   Saturn.
B)   Comet Halley.
C)   the asteroid Ceres.
D)   Mars.
E)   the asteroid Gaspra.F) A) and B)
G) A) and C)

Question 2

The second most abundant element in the solar system is

Accepted Answer

A)   oxygen.
B)   hydrogen.
C)   silicon.
D)   helium.
E)   carbon.F) A) and B)
G) A) and C)

Question 3

Carbonaceous asteroids contain fragile organic molecules.

Accepted Answer

A) True 
 B)False

Question 4

The most distant objects in our solar system are

Accepted Answer

A)   in the Kuiper Belt.
B)   short period comets.
C)   the Trojan asteroids.
D)   the jovians.
E)   in the Oort Cloud.F) B) and E)
G) B) and D)

Question 5

Planetary orbits

Accepted Answer

A)   are highly inclined to the ecliptic.
B)   are evenly spaced throughout the solar system.
C)   are almost circular, with low eccentricities.
D)   have the Sun at their exact center.
E)   are spaced more closely together as they get further from the Sun.F) A) and E)
G) B) and E)

Question 6

The curved, yellow tail lags behind the blue tail as the comet rounds the Sun.

Accepted Answer

The answer of The curved, yellow tail lags behind the...

Question 7

A meteorite is

Accepted Answer

A)   an irregularly shaped body, mostly found orbiting between Mars and Jupiter.
B)   a streak of light in the atmosphere.
C)   a chunk of space debris that has struck the ground.
D)   an icy body with a long tail extending from it.
E)   a chunk of space debris orbiting the Earth.F) A) and D)
G) A) and C)

Question 8

No stars have yet been observed that have more than one exoplanet.

Accepted Answer

A) True 
 B)False

Question 9

The solar nebular theory has been supported by observation of dusty disks around the
of young, condensing stars.

Accepted Answer

The answer of The solar nebular theory has been supported...

Question 10

A solid body from the outer solar system that arrives intact on the Earth's surface is called a(n) .

Accepted Answer

The answer of A solid body from the outer solar...

Question 11

What are the measured densities of the exoplanets called "hot Jupiters," and why are these densities inconsistent with theoretical models?

Accepted Answer

The densities of hot Jupiters are very l...

Question 12

All jovian planets have rings around their equators and at least eight moons.

Accepted Answer

A) True 
 B)False

Question 13

One characteristic of the terrestrial planets is their extensive moon systems.

Accepted Answer

A) True 
 B)False

Question 14

Objects in the Kuiper belt

Accepted Answer

A)   lie beyond the orbit of Neptune, and close to the ecliptic.
B)   are the sources of long- period comets.
C)   lie beyond the orbit of Neptune and perpendicular to the ecliptic.
D)   are in random orbits at all inclinations to the ecliptic.
E)   are dense, like the iron meteorites.F) A) and B)
G) B) and C)

Question 15

The key ingredient in planetary formation in the solar nebula is .

Accepted Answer

interstell...

Question 16

The fact that we don't see very many Earthlike planets in orbit around other stars is an indication that Earthlike planets are rare.

Accepted Answer

A) True 
 B)False

Question 17

Which statement about extrasolar planets found to date is true?

Accepted Answer

A)   All lie more than 2 AU from their star.
B)   Some are so close to their stars that their periods are just a few days.
C)   Few are found by Doppler shifts of their stars, due to their gravity.
D)   Most have orbital periods of more than a year.
E)   All are terrestrials, comparable in size to Earth.F) C) and E)
G) B) and C)

Question 18

The jovian planets

Accepted Answer

A)   all lie less than 5 AU from the Sun.
B)   all have rings around their equators.
C)   have satellite systems with less than 4 moons.
D)   all spin more slowly than the Earth.
E)   are all much denser than any of the terrestrial planets.F) B) and E)
G) A) and B)

Question 19

Planetary transits of exoplanets are rare because

Accepted Answer

A)   most extrasolar systems are not seen edge- on.
B)   our telescopes are not powerful enough to detect them.
C)   most stars are too bright for us to detect a planetary transit.
D)   the Earth's atmosphere interferes with our observations of transits.
E)   most exoplanets are smaller than Pluto.F) C) and D)
G) A) and B)

Question 20

The process by which small debris condenses into planetesimals is .

Accepted Answer

The answer of The process by which small debris condenses...

Exam 5: The Solar System: Interplanetary Matter and the Birth of the Planets

The curved, yellow tail lags behind the blue tail as the comet rounds the Sun.

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No stars have yet been observed that have more than one exoplanet.

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Before it arrived in orbit about Jupiter, the Galileo spacecraft flew past

Correct AnswerverifiedShow Answer

The most distant objects in our solar system are

Correct AnswerverifiedShow Answer

Planetary transits of exoplanets are rare because

Correct AnswerverifiedShow Answer

Objects in the Kuiper belt

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What are the measured densities of the exoplanets called "hot Jupiters," and why are these densities inconsistent with theoretical models?

Correct AnswerverifiedThe densities of hot Jupiters are very l...View AnswerShow Answer

A meteorite is

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Carbonaceous asteroids contain fragile organic molecules.

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A solid body from the outer solar system that arrives intact on the Earth's surface is called a(n) .

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Planetary orbits

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One characteristic of the terrestrial planets is their extensive moon systems.

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The second most abundant element in the solar system is

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Which statement about extrasolar planets found to date is true?

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The fact that we don't see very many Earthlike planets in orbit around other stars is an indication that Earthlike planets are rare.

Correct AnswerverifiedShow Answer

All jovian planets have rings around their equators and at least eight moons.

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The jovian planets

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The solar nebular theory has been supported by observation of dusty disks around the of young, condensing stars.

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The process by which small debris condenses into planetesimals is .

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The key ingredient in planetary formation in the solar nebula is .

Correct Answerverifiedinterstell...View AnswerShow Answer

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The densities of hot Jupiters are very l...
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interstell...
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