Question 1

How is the Sun's rotation different than that of Earth's?

Accepted Answer

Earth is a solid body and rotates equall

Question 2

During the first reaction of the proton-proton chain of nuclear fusion, a weak force causes one of the protons to transform into a neutron and emit ____.

Accepted Answer

A)  a positron and a neutrino 
B)  a positron and a deuterium 
C)  a neutrino and a deuterium 
D)  a neutrino and an electron 
E)  a deuterium and an electron 
A)  a positron and a neutrino 
B)  a positron and a deuterium 
C)  a neutrino and a deuterium 
D)  a neutrino and an electron 
E)  a deuterium and an electron

Question 3

Why do sunspots occur darker than the rest of the Sun's surface?

Accepted Answer

Sunspots are cooler than the photosphere

Question 4

Astronomers can measure the magnetic fields of sunspots using the ____, which splits spectral lines into multiple components.

Accepted Answer

A)  Zeeman effect 
B)  Maunder effect 
C)  Babcock effect 
D)  Galileo effect 
E)  Payne effect 
A)  Zeeman effect 
B)  Maunder effect 
C)  Babcock effect 
D)  Galileo effect 
E)  Payne effect

Question 5

What methodology do astronomers use to map the inside of the Sun?

Accepted Answer

A)  heliogeology 
B)  chromography 
C)  coronagraphy 
D)  helioseismology 
E)  magnetic field mapping 
A)  heliogeology 
B)  chromography 
C)  coronagraphy 
D)  helioseismology 
E)  magnetic field mapping

Question 6

Astronomers refer to the dark center of a sunspot as a(n) ____

Accepted Answer

A)  eye 
B)  flare 
C)  umbra 
D)  spicule 
E)  penumbra 
A)  eye 
B)  flare 
C)  umbra 
D)  spicule 
E)  penumbra

Question 7

The _____ occurs when some of the energy in the convective motion of gas is converted into magnetic field energy.

Accepted Answer

A)  Zeeman effect 
B)  Maunder minimum 
C)  meridional flow 
D)  dynamo effect 
E)  reconnection event 
A)  Zeeman effect 
B)  Maunder minimum 
C)  meridional flow 
D)  dynamo effect 
E)  reconnection event

Question 8

Explain the Babcock model and why the solar cycle should really be considered as a 22-year cycle instead of 11-year cycle.

Accepted Answer

The Babcock model explains the magnetic

Question 9

Galileo proposed that the Sun is a rotating sphere after he ____.

Accepted Answer

A)  timed a full rotation of the Sun's equator 
B)  observed sunspots move across the surface of the Sun 
C)  measured different spectral lines of emission on different days 
D)  noted how the Sun rose in the east and set in the west 
E)  discovered the parallax of the Sun 
A)  timed a full rotation of the Sun's equator 
B)  observed sunspots move across the surface of the Sun 
C)  measured different spectral lines of emission on different days 
D)  noted how the Sun rose in the east and set in the west 
E)  discovered the parallax of the Sun

Question 10

What are the dark regions that give the Sun's photosphere a mottled appearance?

Accepted Answer

A)  sunspots 
B)  spicules 
C)  granules 
D)  flares 
E)  CMEs 
A)  sunspots 
B)  spicules 
C)  granules 
D)  flares 
E)  CMEs

Question 11

Why does the temperature of the corona rise with latitude?

Accepted Answer

A)  Atoms within the corona become more ionized at higher altitudes. 
B)  Atoms are forced upward from the chromosphere to the corona. 
C)  Atoms become neutralized as they dissipate in higher altitudes. 
D)  Atoms undergo fission when repelled by the corona. 
E)  Atoms are less excited as they move from the photosphere to the corona. 
A)  Atoms within the corona become more ionized at higher altitudes. 
B)  Atoms are forced upward from the chromosphere to the corona. 
C)  Atoms become neutralized as they dissipate in higher altitudes. 
D)  Atoms undergo fission when repelled by the corona. 
E)  Atoms are less excited as they move from the photosphere to the corona.

Question 12

Consider the complete magnetic cycle of sunspot activity on the Sun. Approximately how many years is this cycle?

Accepted Answer

A)  7 years 
B)  11 years 
C)  22 years 
D)  40 years 
E)  100 years 
A)  7 years 
B)  11 years 
C)  22 years 
D)  40 years 
E)  100 years

How is the Sun's rotation different than that of Earth's?

During the first reaction of the proton-proton chain of nuclear fusion, a weak force causes one of the protons to transform into a neutron and emit ____.

Why do sunspots occur darker than the rest of the Sun's surface?

Astronomers can measure the magnetic fields of sunspots using the ____, which splits spectral lines into multiple components.

What methodology do astronomers use to map the inside of the Sun?

Astronomers refer to the dark center of a sunspot as a(n) ____

The _____ occurs when some of the energy in the convective motion of gas is converted into magnetic field energy.

Explain the Babcock model and why the solar cycle should really be considered as a 22-year cycle instead of 11-year cycle.

Galileo proposed that the Sun is a rotating sphere after he ____.

What are the dark regions that give the Sun's photosphere a mottled appearance?

Why does the temperature of the corona rise with latitude?

Consider the complete magnetic cycle of sunspot activity on the Sun. Approximately how many years is this cycle?

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

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Exam 8: The Sun

How is the Sun's rotation different than that of Earth's?

During the first reaction of the proton-proton chain of nuclear fusion, a weak force causes one of the protons to transform into a neutron and emit ____.

Why do sunspots occur darker than the rest of the Sun's surface?

Astronomers can measure the magnetic fields of sunspots using the ____, which splits spectral lines into multiple components.

What methodology do astronomers use to map the inside of the Sun?

Astronomers refer to the dark center of a sunspot as a(n) ____

The _____ occurs when some of the energy in the convective motion of gas is converted into magnetic field energy.

Explain the Babcock model and why the solar cycle should really be considered as a 22-year cycle instead of 11-year cycle.

Galileo proposed that the Sun is a rotating sphere after he ____.

What are the dark regions that give the Sun's photosphere a mottled appearance?

Why does the temperature of the corona rise with latitude?

Consider the complete magnetic cycle of sunspot activity on the Sun. Approximately how many years is this cycle?

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

Filters