Question 1

"All distant galaxies are moving away from us,and the farther away a galaxy is from us,the faster it is moving" is a statement of ______________ law.

Accepted Answer

The answer of "All distant galaxies are moving away from...

Question 2

The explosion of a Type II supernova leaves behind

Accepted Answer

A)  just a black hole. 
B)  a neutron star or a black hole. 
C)  just a neutron star. 
D)  none of the above. 
A)  just a black hole. 
B)  a neutron star or a black hole. 
C)  just a neutron star. 
D)  none of the above.

Question 3

The Sun is

Accepted Answer

A)  a self-luminous sphere. 
B)  energized by nuclear fusion. 
C)  a plasma. 
D)  all of the above. 
A)  a self-luminous sphere. 
B)  energized by nuclear fusion. 
C)  a plasma. 
D)  all of the above.

Question 4

If the magnitude difference between one star and another is 8,the stars differ in brightness by a factor of

Accepted Answer

A)  2.51. 
B)  20. 
C)  7. 
D)  1580. 
A)  2.51. 
B)  20. 
C)  7. 
D)  1580.

Question 5

The remaining core of a planetary nebula is called a _______________.

Accepted Answer

A)  white dwarf 
B)  neutron star 
C)  black hole 
D)  red giant 
A)  white dwarf 
B)  neutron star 
C)  black hole 
D)  red giant

Question 6

The closest star to the Sun is about how far away?

Accepted Answer

A)  17.7 light-years 
B)  0.52 light-years 
C)  33.6 light-years 
D)  4.3 light-years 
A)  17.7 light-years 
B)  0.52 light-years 
C)  33.6 light-years 
D)  4.3 light-years

Question 7

The Sun has been on the main sequence

Accepted Answer

A)  for about 10 million years. 
B)  for about 5 billion years. 
C)  forever. 
D)  for about 14 billion years. 
A)  for about 10 million years. 
B)  for about 5 billion years. 
C)  forever. 
D)  for about 14 billion years.

Question 8

In a star,the condition of balance between the inward force of gravity and the outward force of thermal and radiation pressure is known as _______________ equilibrium.

Accepted Answer

A)  hydrostatic 
B)  thermal 
C)  photostatic 
D)  magnetostatic 
A)  hydrostatic 
B)  thermal 
C)  photostatic 
D)  magnetostatic

Question 9

The number of _______________ on the Sun varies over an 11-year cycle.

Accepted Answer

A)  sunspots 
B)  rays 
C)  canals 
D)  valleys 
A)  sunspots 
B)  rays 
C)  canals 
D)  valleys

Question 10

The Sun's energy is generated from the fusion of

Accepted Answer

A)  uranium to form lead, Pb. 
B)  helium nuclei to form carbon nuclei. 
C)  hydrogen nuclei to form helium nuclei. 
D)  carbon nuclei to form magnesium nuclei. 
A)  uranium to form lead, Pb. 
B)  helium nuclei to form carbon nuclei. 
C)  hydrogen nuclei to form helium nuclei. 
D)  carbon nuclei to form magnesium nuclei.

Question 11

If the magnitude difference between one star and another is 5,the stars differ in brightness by a factor of

Accepted Answer

A)  2.51. 
B)  10. 
C)  4. 
D)  100. 
A)  2.51. 
B)  10. 
C)  4. 
D)  100.

Question 12

What is the visible surface of the Sun called?

Accepted Answer

A)  Photosphere 
B)  Atmosphere 
C)  Stratosphere 
D)  Glowing sphere 
A)  Photosphere 
B)  Atmosphere 
C)  Stratosphere 
D)  Glowing sphere

Question 13

The closest star to the Sun is named ______________.

Accepted Answer

The answer of The closest star to the Sun is...

Question 14

What is the name of the Sun's outermost solar atmosphere,which can be seen during a solar eclipse?

Accepted Answer

A)  Solar wind 
B)  Heliosphere 
C)  Photosphere 
D)  Corona 
A)  Solar wind 
B)  Heliosphere 
C)  Photosphere 
D)  Corona

Question 15

The Sun projects charged particles into space,giving rise to a flow of radiation called the

Accepted Answer

A)  heliosphere. 
B)  solar wind. 
C)  corona. 
D)  chromosphere. 
A)  heliosphere. 
B)  solar wind. 
C)  corona. 
D)  chromosphere.

Question 16

The Sun is a(n)______________.

Accepted Answer

The answer of The Sun is a(n)______________....

Question 17

The Sun is a

Accepted Answer

A)  moon. 
B)  galaxy. 
C)  planet. 
D)  star. 
A)  moon. 
B)  galaxy. 
C)  planet. 
D)  star.

Question 18

How many constellations encompass the complete celestial sphere?

Accepted Answer

A)  88 
B)  360 
C)  180 
D)  100 
A)  88 
B)  360 
C)  180 
D)  100

Question 19

The angular measure in degrees north or south of the celestial equator is called _______________.

Accepted Answer

A)  declination 
B)  azimuth 
C)  altitude 
D)  latitude 
A)  declination 
B)  azimuth 
C)  altitude 
D)  latitude

Question 20

The sunspot cycle has a period of

Accepted Answer

A)  19 years. 
B)  11 years. 
C)  38 years. 
D)  24 years. 
A)  19 years. 
B)  11 years. 
C)  38 years. 
D)  24 years.

Exam 18: The Universe

"All distant galaxies are moving away from us,and the farther away a galaxy is from us,the faster it is moving" is a statement of ______________ law.

The explosion of a Type II supernova leaves behind

The Sun is

If the magnitude difference between one star and another is 8,the stars differ in brightness by a factor of

The remaining core of a planetary nebula is called a _______________.

The closest star to the Sun is about how far away?

The Sun has been on the main sequence

In a star,the condition of balance between the inward force of gravity and the outward force of thermal and radiation pressure is known as _______________ equilibrium.

The number of _______________ on the Sun varies over an 11-year cycle.

The Sun's energy is generated from the fusion of

If the magnitude difference between one star and another is 5,the stars differ in brightness by a factor of

What is the visible surface of the Sun called?

The closest star to the Sun is named ______________.

What is the name of the Sun's outermost solar atmosphere,which can be seen during a solar eclipse?

The Sun projects charged particles into space,giving rise to a flow of radiation called the

The Sun is a(n)______________.

The Sun is a

How many constellations encompass the complete celestial sphere?

The angular measure in degrees north or south of the celestial equator is called _______________.

The sunspot cycle has a period of

Measurement

Motion

Force and Motion

Work and Energy

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Atmosphere

Atmospheric Effects

Structural G Eology and P Late Tectonics

Minerals, rocks, and Volcanoes

Surface Processes

Geologic Time

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