Question 1

The Kepler mission has found a lot more of ______________ than Earth-like extrasolar planets.

Accepted Answer

hot Jupiters,Jovian planets,hot Neptunes,hot Earths

Question 2

The outer planets are composed of ____.

Accepted Answer

A)  rock and ice 
B)  ice and gas 
C)  metal and ice 
D)  high density metals 
E)  low density gas 
A)  rock and ice 
B)  ice and gas 
C)  metal and ice 
D)  high density metals 
E)  low density gas E

Question 3

What combination of forces releases the gas and dust of a comet when it approaches the Sun?

Accepted Answer

A)  radiation pressure and electromagnetic energy 
B)  electromagnetic energy and solar wind 
C)  solar flares and nuclear fission 
D)  gravitational energy and solar wind 
E)  solar wind and radiation pressure 
A)  radiation pressure and electromagnetic energy 
B)  electromagnetic energy and solar wind 
C)  solar flares and nuclear fission 
D)  gravitational energy and solar wind 
E)  solar wind and radiation pressure E

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The debris disk around the star Beta Pictoris is about _______ times the diameter of our Solar System.

Accepted Answer

A)  5 
B)  20 
C)  100 
D)  250 
E)  500 
A)  5 
B)  20 
C)  100 
D)  250 
E)  500

Question 6

Comets are composed of ____.

Accepted Answer

A)  rock and dust 
B)  rock and metals 
C)  ice and metals 
D)  ice and dust 
E)  rock and gas 
A)  rock and dust 
B)  rock and metals 
C)  ice and metals 
D)  ice and dust 
E)  rock and gas

Question 7

Which best describes the appearance of an asteroid?

Accepted Answer

A)  spherical in shape and covered with craters 
B)  spherical in shape with a volcanic surface 
C)  irregular in shape and covered with craters 
D)  irregular in shape with a volcanic surface 
E)  spherical in shape and smooth, dusty surface 
A)  spherical in shape and covered with craters 
B)  spherical in shape with a volcanic surface 
C)  irregular in shape and covered with craters 
D)  irregular in shape with a volcanic surface 
E)  spherical in shape and smooth, dusty surface

Question 8

The dense disks of gas and dust such as those seen around the stars in Orion are sites where planets could be forming right now.

Accepted Answer

A) True 
 B)False

Question 9

Which element represented most of the atoms in the early Universe?

Accepted Answer

A)  helium 
B)  hydrogen 
C)  oxygen 
D)  carbon 
E)  nitrogen 
A)  helium 
B)  hydrogen 
C)  oxygen 
D)  carbon 
E)  nitrogen

Question 10

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

Question 11

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)  asteroids 
A)  lunar rocks 
B)  Earth core samples 
C)  meteorites 
D)  meteors 
E)  asteroids

Question 12

What was the key physical property in determining the two categories of planets during solar system formation?

Accepted Answer

A)  pressure 
B)  gravity 
C)  density 
D)  momentum 
E)  temperature 
A)  pressure 
B)  gravity 
C)  density 
D)  momentum 
E)  temperature

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 inner planets are composed of rock and metal, and the outer planets are rich in low-density gases such as hydrogen and helium.

Accepted Answer

A) True 
 B)False

Question 15

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 collapse 
A)  heating 
B)  flattening 
C)  accretion 
D)  condensation 
E)  gravitational collapse

Question 16

From meteorite and lunar rock samples, astronomers have determined the age of the Solar System to be ____.

Accepted Answer

A)  4.6 million years 
B)  10 million years 
C)  2.4 billion years 
D)  4.6 billion years 
E)  8.4 billion years 
A)  4.6 million years 
B)  10 million years 
C)  2.4 billion years 
D)  4.6 billion years 
E)  8.4 billion years

Question 17

Which best describes the transit method?

Accepted Answer

A)  observing changes in the brightness of the star when the orbiting planet crosses in front of the star 
B)  observing the magnification of a distant star's brightness by gravitational lensing when an extrasolar planet passes precisely between Earth and a background star 
C)  observing the back-and-forth motion that can be measured from Doppler shifts in a star's spectrum 
D)  observing the intensity of brightness from a newborn distant star 
E)  observing the magnification of a distant planet when it passes closely to our Solar System 
A)  observing changes in the brightness of the star when the orbiting planet crosses in front of the star 
B)  observing the magnification of a distant star's brightness by gravitational lensing when an extrasolar planet passes precisely between Earth and a background star 
C)  observing the back-and-forth motion that can be measured from Doppler shifts in a star's spectrum 
D)  observing the intensity of brightness from a newborn distant star 
E)  observing the magnification of a distant planet when it passes closely to our Solar System

Question 18

Which physical property in Laplace's nebular hypothesis could not explain the Sun's slow rotation?

Accepted Answer

A)  angular momentum 
B)  angular diameter 
C)  gravitational pull 
D)  radiation pressure 
E)  electromagnetic energy 
A)  angular momentum 
B)  angular diameter 
C)  gravitational pull 
D)  radiation pressure 
E)  electromagnetic energy

Question 19

As a radioactive substance gradually decays, the abundance of daughter ____ gradually increases.

Accepted Answer

A)  atoms 
B)  isotopes 
C)  elements 
D)  cells 
E)  nuclei 
A)  atoms 
B)  isotopes 
C)  elements 
D)  cells 
E)  nuclei

Question 20

According to the solar nebula theory, Earth and the other planets of the Solar System formed billions of years ago as the Sun _______________ from a cloud of interstellar gas and dust.

Accepted Answer

The answer of According to the solar nebula theory, Earth...

The Kepler mission has found a lot more of ______________ than Earth-like extrasolar planets.

The outer planets are composed of ____.

What combination of forces releases the gas and dust of a comet when it approaches the Sun?

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

The debris disk around the star Beta Pictoris is about _______ times the diameter of our Solar System.

Comets are composed of ____.

Which best describes the appearance of an asteroid?

The dense disks of gas and dust such as those seen around the stars in Orion are sites where planets could be forming right now.

Which element represented most of the atoms in the early Universe?

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

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

What was the key physical property in determining the two categories of planets during solar system formation?

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

The inner planets are composed of rock and metal, and the outer planets are rich in low-density gases such as hydrogen and helium.

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

From meteorite and lunar rock samples, astronomers have determined the age of the Solar System to be ____.

Which best describes the transit method?

Which physical property in Laplace's nebular hypothesis could not explain the Sun's slow rotation?

As a radioactive substance gradually decays, the abundance of daughter ____ gradually increases.

According to the solar nebula theory, Earth and the other planets of the Solar System formed billions of years ago as the Sun _______________ from a cloud of interstellar gas and dust.

Here and Now

A User S Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

Earth the Active Planet

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology: Life on Other Worlds

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Exam 10: Origin of the Solar System and Extrasolar Planets

The Kepler mission has found a lot more of ______________ than Earth-like extrasolar planets.

The outer planets are composed of ____.

What combination of forces releases the gas and dust of a comet when it approaches the Sun?

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

The debris disk around the star Beta Pictoris is about _______ times the diameter of our Solar System.

Comets are composed of ____.

Which best describes the appearance of an asteroid?

The dense disks of gas and dust such as those seen around the stars in Orion are sites where planets could be forming right now.

Which element represented most of the atoms in the early Universe?

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

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

What was the key physical property in determining the two categories of planets during solar system formation?

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

The inner planets are composed of rock and metal, and the outer planets are rich in low-density gases such as hydrogen and helium.

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

From meteorite and lunar rock samples, astronomers have determined the age of the Solar System to be ____.

Which best describes the transit method?

Which physical property in Laplace's nebular hypothesis could not explain the Sun's slow rotation?

As a radioactive substance gradually decays, the abundance of daughter ____ gradually increases.

According to the solar nebula theory, Earth and the other planets of the Solar System formed billions of years ago as the Sun _______________ from a cloud of interstellar gas and dust.

Here and Now

A User S Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

Earth the Active Planet

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology: Life on Other Worlds

Filters