Question 1

The oldest objects found so far in our solar system are Earth rocks that are 1 billion years old.

Accepted Answer

A) True 
 B)False

Question 2

Describe four effects that helped to clear the solar nebula.

Accepted Answer

​ 
1. Radiation pressure: light streamin

Question 3

We observe a planet crossing in front of its host star and the planet is smaller than the star. We call this crossing motion a ____________.

Accepted Answer

The answer of We observe a planet crossing in front...

Question 4

Outgassing is

Accepted Answer

A)  the adding of material to an object an atom or molecule at a time. 
B)  the adding of material to an object by collection of solid particles. 
C)  the release of gas from rocks as they are heated. 
D)  the largest of the Galilean satellites. 
E)  caused by the bombardment of the solar wind. 
A)  the adding of material to an object an atom or molecule at a time. 
B)  the adding of material to an object by collection of solid particles. 
C)  the release of gas from rocks as they are heated. 
D)  the largest of the Galilean satellites. 
E)  caused by the bombardment of the solar wind.

Question 5

The solar system contains no extrasolar planets.

Accepted Answer

A) True 
 B)False

Question 6

The iron in our solar system was created from smaller-mass atomic nuclei in

Accepted Answer

A)  the Earth. 
B)  our Sun. 
C)  Jupiter. 
D)  the big bang. 
E)  supernovae. 
A)  the Earth. 
B)  our Sun. 
C)  Jupiter. 
D)  the big bang. 
E)  supernovae.

Question 7

The ___________ hypothesis of the formation of the solar system uses sudden events that drastically alter the form of the early solar system.

Accepted Answer

The answer of The ___________ hypothesis of the formation of...

Question 8

Terrestrials are small, rocky, and dense.

Accepted Answer

A) True 
 B)False

Question 9

Once a terrestrial planet had formed from a large number of planetesimals, heat could have melted it and allowed it to differentiate into a metallic core of ____________density and a rocky mantle or crust of ____________ density.

Accepted Answer

A)  higher; lower 
B)  lower; higher 
C)  Wrong! The interior stays solid. 
D)  Wrong! There is no separation according to density. 
A)  higher; lower 
B)  lower; higher 
C)  Wrong! The interior stays solid. 
D)  Wrong! There is no separation according to density.

Question 10

A meteoroid, meteor, and meteorite could come from the same celestial body.

Accepted Answer

A) True 
 B)False

Question 11

All planets in the solar system orbit counterclockwise as seen from the north.

Accepted Answer

A) True 
 B)False

Question 12

All old surfaces in the solar system were heavily cratered during the ________________ period by leftover debris from when the planets formed.

Accepted Answer

The answer of All old surfaces in the solar system...

Question 13

Describe some characteristics that all the planets seem to share and use the solar nebula theory to explain them.

Accepted Answer

All planets orbit in nearly the same pla

Question 14

The speed of the solar wind is approximately 400 km/s and the distance from the Sun to Saturn is 9.5 AU (1 AU = 1.5 × 108 km). How long does it take a particle in the solar wind to reach Saturn?

Accepted Answer

A)  about 4.1 hours 
B)  about 4.1 days 
C)  about 41 days 
D)  about 4.1 years 
E)  about 41 years 
A)  about 4.1 hours 
B)  about 4.1 days 
C)  about 41 days 
D)  about 4.1 years 
E)  about 41 years

Question 15

How do the motions of the Sun and planets reflect the disk shape of the solar nebula?

Accepted Answer

The solar nebula theory supposes that pl

Question 16

Massive planets create ____________ Doppler shifts of their stars than lower-mass planets.

Accepted Answer

The answer of Massive planets create ____________ Doppler shifts of...

Question 17

51 Pegasi is important because

Accepted Answer

A)  it is a pulsar with planets orbiting around it. 
B)  it is a star with a planet that is known to support intelligent life. 
C)  it is the largest satellite of Jupiter. 
D)  it is the largest known asteroid. 
E)  it is the first star like our Sun that was found to have a planet orbiting it. 
A)  it is a pulsar with planets orbiting around it. 
B)  it is a star with a planet that is known to support intelligent life. 
C)  it is the largest satellite of Jupiter. 
D)  it is the largest known asteroid. 
E)  it is the first star like our Sun that was found to have a planet orbiting it.

Question 18

In one sentence, write a scenario involving a meteor, meteorite, and meteoroid.

Accepted Answer

Meteor refers to the streak of light in

Question 19

How does the solar nebula theory account for the presence of comets?

Accepted Answer

Comets are understoo

Question 20

Using the graph shown above, find out how many half-lives does it take for all radioactive atoms to decay into daughter products,

Accepted Answer

A)  3 
B)  2 
C)  6 
D)  4 
A)  3 
B)  2 
C)  6 
D)  4

The oldest objects found so far in our solar system are Earth rocks that are 1 billion years old.

Describe four effects that helped to clear the solar nebula.

We observe a planet crossing in front of its host star and the planet is smaller than the star. We call this crossing motion a ____________.

Outgassing is

The solar system contains no extrasolar planets.

The iron in our solar system was created from smaller-mass atomic nuclei in

The ___________ hypothesis of the formation of the solar system uses sudden events that drastically alter the form of the early solar system.

Terrestrials are small, rocky, and dense.

Once a terrestrial planet had formed from a large number of planetesimals, heat could have melted it and allowed it to differentiate into a metallic core of density and a rocky mantle or crust of density.

A meteoroid, meteor, and meteorite could come from the same celestial body.

All planets in the solar system orbit counterclockwise as seen from the north.

All old surfaces in the solar system were heavily cratered during the ________________ period by leftover debris from when the planets formed.

Describe some characteristics that all the planets seem to share and use the solar nebula theory to explain them.

The speed of the solar wind is approximately 400 km/s and the distance from the Sun to Saturn is 9.5 AU (1 AU = 1.5 × 10⁸ km). How long does it take a particle in the solar wind to reach Saturn?

How do the motions of the Sun and planets reflect the disk shape of the solar nebula?

Massive planets create ____________ Doppler shifts of their stars than lower-mass planets.

51 Pegasi is important because

In one sentence, write a scenario involving a meteor, meteorite, and meteoroid.

How does the solar nebula theory account for the presence of comets?

Using the graph shown above, find out how many half-lives does it take for all radioactive atoms to decay into daughter products,

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 15: Origin of the Solar System and Extrasolar Planets

The oldest objects found so far in our solar system are Earth rocks that are 1 billion years old.

Describe four effects that helped to clear the solar nebula.

We observe a planet crossing in front of its host star and the planet is smaller than the star. We call this crossing motion a ____________.

Outgassing is

The solar system contains no extrasolar planets.

The iron in our solar system was created from smaller-mass atomic nuclei in

The ___________ hypothesis of the formation of the solar system uses sudden events that drastically alter the form of the early solar system.

Terrestrials are small, rocky, and dense.

Once a terrestrial planet had formed from a large number of planetesimals, heat could have melted it and allowed it to differentiate into a metallic core of ____________density and a rocky mantle or crust of ____________ density.

A meteoroid, meteor, and meteorite could come from the same celestial body.

All planets in the solar system orbit counterclockwise as seen from the north.

All old surfaces in the solar system were heavily cratered during the ________________ period by leftover debris from when the planets formed.

Describe some characteristics that all the planets seem to share and use the solar nebula theory to explain them.

The speed of the solar wind is approximately 400 km/s and the distance from the Sun to Saturn is 9.5 AU (1 AU = 1.5 × 108 km). How long does it take a particle in the solar wind to reach Saturn?

How do the motions of the Sun and planets reflect the disk shape of the solar nebula?

Massive planets create ____________ Doppler shifts of their stars than lower-mass planets.

51 Pegasi is important because

In one sentence, write a scenario involving a meteor, meteorite, and meteoroid.

How does the solar nebula theory account for the presence of comets?

Using the graph shown above, find out how many half-lives does it take for all radioactive atoms to decay into daughter products,

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Once a terrestrial planet had formed from a large number of planetesimals, heat could have melted it and allowed it to differentiate into a metallic core of density and a rocky mantle or crust of density.

The speed of the solar wind is approximately 400 km/s and the distance from the Sun to Saturn is 9.5 AU (1 AU = 1.5 × 10⁸ km). How long does it take a particle in the solar wind to reach Saturn?