Question 1

The majority of stars are in the main-sequence stage.

Accepted Answer

A) True 
 B)False

Question 2

Match the types of nebulae in the first column with the correct descriptions in the second column. Each nebula type may have more than one corresponding description.
A)reflection nebulae
B)dark nebulae
C)emission nebulae
D)planetary nebulae
-1)spherical in shape
2)bluish in color 
3)make up the dark patches we observe within the Milky Way 
4)reddish in color 
5)form when a medium-mass star reaches the end of its red giant stage, and throws off its bloated outer atmosphere 
6)don't emit or reflect light 
7)mainly made of hydrogen 
8)mainly made of dust 
9)a region where stars are actively forming 
10)made of the same material as bright nebulae

Accepted Answer

1)D 2)A 3)

Question 3

Rapidly rotating neutron stars ________.

Accepted Answer

A) produce radio waves at their magnetic poles, causing them to be perceived (from Earth's perspective)as pulsars 
B) are more dense than black holes 
C) have a central barred region 
D) cannot be detected directly, but we can observe their gravitational effects on other physical objects 
A) produce radio waves at their magnetic poles, causing them to be perceived (from Earth's perspective)as pulsars 
B) are more dense than black holes 
C) have a central barred region 
D) cannot be detected directly, but we can observe their gravitational effects on other physical objects

Question 4

Edwin Hubble used Cepheid variables to ________.

Accepted Answer

A) establish that the universe was very, very large 
B) formulate the big bang theory 
C) deduce that the universe was expanding 
D) calculate the density of a neutron star 
A) establish that the universe was very, very large 
B) formulate the big bang theory 
C) deduce that the universe was expanding 
D) calculate the density of a neutron star

Question 5

The Milky Way is in a galactic cluster called the Local Group.

Accepted Answer

A) True 
 B)False

Question 6

Briefly discuss stellar evolution in the context of a star like the Sun. What forces are opposing one another throughout the life of a star and how do they influence the various stages in the life cycle of a star?

Accepted Answer

Stars form by the gravitational collapse

Question 7

Cosmology is the study of ________.

Accepted Answer

A) our solar system 
B) stars 
C) the universe 
D) making people more beautiful 
A) our solar system 
B) stars 
C) the universe 
D) making people more beautiful

Question 8

The larger a star's magnitude number, the brighter it will appear.

Accepted Answer

A) True 
 B)False

Question 9

Clumps of gas and dust dispersed through a large volume of space are the birthplace of stars. They are called ________.

Accepted Answer

The answer of Clumps of gas and dust dispersed through...

Question 10

Why are neutron stars called "neutron stars"?

Accepted Answer

A) They are new versions of old stars; "Neu Tron" means " New Star" in Hungarian. 
B) They are so dense that protons and electrons fuse to form neutrons. 
C) They appear to emit short pulses of radio waves. 
D) They are composed of neutrons gathered from the surrounding nebula by the terrific gravity of the neutron star. Electrons and protons, being less massive, aren't as likely to be pulled in. 
A) They are new versions of old stars; "Neu Tron" means " New Star" in Hungarian. 
B) They are so dense that protons and electrons fuse to form neutrons. 
C) They appear to emit short pulses of radio waves. 
D) They are composed of neutrons gathered from the surrounding nebula by the terrific gravity of the neutron star. Electrons and protons, being less massive, aren't as likely to be pulled in.

Question 11

"Red shift" refers to the tendency of stars to cool over time and thus to become red in color.

Accepted Answer

A) True 
 B)False

Question 12

Compare and contrast a high-density universe with a low-density universe in terms of its ultimate fate.

Accepted Answer

Whether the universe will expand forever

Question 13

The biggest explosions in the universe are ________ associated with the death of high-mass stars.

Accepted Answer

supernovas

Question 14

A star's size (volume)is directly proportional to its mass.

Accepted Answer

A) True 
 B)False

Question 15

Examine the figure. Which of the four options shown here most closely matches the evolution of a high-mass star?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 16

Stars with a surface temperature of about 3000 K appear red in color.

Accepted Answer

A) True 
 B)False

Question 17

________ is a kind of matter that doesn't interact with visible light, but exerts a gravitational pull on other matter. It is hypothesized to exist in great quantities in the universe.

Accepted Answer

The answer of ________ is a kind of matter that...

Question 18

If a star ends its life cycle as a black hole, that implies it has a(n)________ mass.

Accepted Answer

The answer of If a star ends its life cycle...

Question 19

Which of the following four figures shows the correct set of arrows, corresponding to the evolution of a mid-sized star like Earth's Sun?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 20

We are residents of the ________ galaxy.

Accepted Answer

A) Milky Way 
B) Orion 
C) Pleiades 
D) Messier 83 
A) Milky Way 
B) Orion 
C) Pleiades 
D) Messier 83

The majority of stars are in the main-sequence stage.

Rapidly rotating neutron stars ________.

Edwin Hubble used Cepheid variables to ________.

The Milky Way is in a galactic cluster called the Local Group.

Briefly discuss stellar evolution in the context of a star like the Sun. What forces are opposing one another throughout the life of a star and how do they influence the various stages in the life cycle of a star?

Cosmology is the study of ________.

The larger a star's magnitude number, the brighter it will appear.

Clumps of gas and dust dispersed through a large volume of space are the birthplace of stars. They are called ________.

Why are neutron stars called "neutron stars"?

"Red shift" refers to the tendency of stars to cool over time and thus to become red in color.

Compare and contrast a high-density universe with a low-density universe in terms of its ultimate fate.

The biggest explosions in the universe are ________ associated with the death of high-mass stars.

A star's size (volume)is directly proportional to its mass.

Examine the figure. Which of the four options shown here most closely matches the evolution of a high-mass star?

Stars with a surface temperature of about 3000 K appear red in color.

________ is a kind of matter that doesn't interact with visible light, but exerts a gravitational pull on other matter. It is hypothesized to exist in great quantities in the universe.

If a star ends its life cycle as a black hole, that implies it has a(n)________ mass.

Which of the following four figures shows the correct set of arrows, corresponding to the evolution of a mid-sized star like Earth's Sun?

We are residents of the ________ galaxy.

Matter and Minerals

Rocks: Materials of the Solid Earth

Landscapes Fashioned by Water

Glacial and Arid Landscapes

Plate Tectonics: A Scientific Revolution Unfolds

Restless Earth: Earthquakes, Geologic Structures, and Mountain Building

Volcanoes and Other Igneous Activity

Geologic Time

Oceans: The Last Frontier

The Restless Ocean

Heating the Atmosphere

Moisture, Clouds, and Precipitation

The Atmosphere in Motion

Weather Patterns and Severe Weather

The Nature of the Solar System

Filters

Exam 16: Beyond Our Solar System

The majority of stars are in the main-sequence stage.

Rapidly rotating neutron stars ________.

Edwin Hubble used Cepheid variables to ________.

The Milky Way is in a galactic cluster called the Local Group.

Briefly discuss stellar evolution in the context of a star like the Sun. What forces are opposing one another throughout the life of a star and how do they influence the various stages in the life cycle of a star?

Cosmology is the study of ________.

The larger a star's magnitude number, the brighter it will appear.

Clumps of gas and dust dispersed through a large volume of space are the birthplace of stars. They are called ________.

Why are neutron stars called "neutron stars"?

"Red shift" refers to the tendency of stars to cool over time and thus to become red in color.

Compare and contrast a high-density universe with a low-density universe in terms of its ultimate fate.

The biggest explosions in the universe are ________ associated with the death of high-mass stars.

A star's size (volume)is directly proportional to its mass.

Examine the figure. Which of the four options shown here most closely matches the evolution of a high-mass star?

Stars with a surface temperature of about 3000 K appear red in color.

________ is a kind of matter that doesn't interact with visible light, but exerts a gravitational pull on other matter. It is hypothesized to exist in great quantities in the universe.

If a star ends its life cycle as a black hole, that implies it has a(n)________ mass.

Which of the following four figures shows the correct set of arrows, corresponding to the evolution of a mid-sized star like Earth's Sun?

We are residents of the ________ galaxy.

Matter and Minerals

Rocks: Materials of the Solid Earth

Landscapes Fashioned by Water

Glacial and Arid Landscapes

Plate Tectonics: A Scientific Revolution Unfolds

Restless Earth: Earthquakes, Geologic Structures, and Mountain Building

Volcanoes and Other Igneous Activity

Geologic Time

Oceans: The Last Frontier

The Restless Ocean

Heating the Atmosphere

Moisture, Clouds, and Precipitation

The Atmosphere in Motion

Weather Patterns and Severe Weather

The Nature of the Solar System

Filters