Question 1

Solar prominences have twisted and looped shapes because of the solar magnetic field.

Accepted Answer

A) True 
 B)False

Question 2

-In the diagram,which of the transitions would absorb a photon with the greatest energy (shortest wavelength)?

Accepted Answer

A) Transition 1 
B) Transition 2 
C) Transition 3 
D) Transition 4 
A) Transition 1 
B) Transition 2 
C) Transition 3 
D) Transition 4

Question 3

Why DON'T we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K?

Accepted Answer

A) These stars are so hot that most of the hydrogen is ionized and the atoms cannot absorb energy. 
B) These stars are so cool that nearly all of the electrons in the hydrogen atom are in the ground state. 
C) Stars of this temperature are too cool to produce an absorption spectrum. 
D) Stars of this temperature are too hot to produce an absorption spectrum. 
A) These stars are so hot that most of the hydrogen is ionized and the atoms cannot absorb energy. 
B) These stars are so cool that nearly all of the electrons in the hydrogen atom are in the ground state. 
C) Stars of this temperature are too cool to produce an absorption spectrum. 
D) Stars of this temperature are too hot to produce an absorption spectrum.

Question 4

If one star has a temperature of 4,000 K and another star has a temperature of 40,000 K,how much more energy per second will the hotter star radiate from each square metre of its surface? ____________________

Accepted Answer

10,000 tim

Question 5

The chromosphere of the Sun has a higher temperature than the photosphere.

Accepted Answer

A) True 
 B)False

Question 6

What evidence do we have that the chromosphere is hotter than the photosphere?

Accepted Answer

The answer of What evidence do we have that the...

Question 7

Where are sunspots found during a sunspot maximum?

Accepted Answer

A) 15 to 30 degrees north and south of the Sun's equator 
B) evenly distributed over the Sun's surface 
C) near the Sun's equator 
D) near the poles of the Sun (latitudes 90° north and south) 
A) 15 to 30 degrees north and south of the Sun's equator 
B) evenly distributed over the Sun's surface 
C) near the Sun's equator 
D) near the poles of the Sun (latitudes 90° north and south)

Question 8

An atom that has lost an electron is called an ion.

Accepted Answer

A) True 
 B)False

Question 9

Why is the temperature at the region of a sunspot cooler than the photosphere?

Accepted Answer

A) Sunspots are holes in the photosphere that reveal the lower-temperature gases in the deeper layers. 
B) Sunspots represent points where streams of cool gas from the corona lower the temperature in those regions of the photosphere. 
C) Powerful magnetic fields in the sunspots act upon the atoms of the photosphere to prevent them from emitting light. 
D) Powerful magnetic fields in the sunspots inhibit the convective flow of the gases of the photosphere downward, allowing the area to cool for longer than would normally be possible. 
A) Sunspots are holes in the photosphere that reveal the lower-temperature gases in the deeper layers. 
B) Sunspots represent points where streams of cool gas from the corona lower the temperature in those regions of the photosphere. 
C) Powerful magnetic fields in the sunspots act upon the atoms of the photosphere to prevent them from emitting light. 
D) Powerful magnetic fields in the sunspots inhibit the convective flow of the gases of the photosphere downward, allowing the area to cool for longer than would normally be possible.

Question 10

What is the term for the absorption lines in the visible portion of the spectrum of a star that are produced by hydrogen?

Accepted Answer

A) Lyman series 
B) Balmer series 
C) Paschen series 
D) Brackett series 
A) Lyman series 
B) Balmer series 
C) Paschen series 
D) Brackett series

Question 11

Which of the following describes the kind of light used to produce a filtergram,a photograph of the Sun's surface?

Accepted Answer

A) a wide band of wavelengths in the infrared 
B) a wide band of wavelengths in the ultraviolet 
C) a narrow band of Zeeman effect wavelengths 
D) a narrow band of wavelengths in a specific spectral line 
A) a wide band of wavelengths in the infrared 
B) a wide band of wavelengths in the ultraviolet 
C) a narrow band of Zeeman effect wavelengths 
D) a narrow band of wavelengths in a specific spectral line

Question 12

The study of the oscillations of the surface and interior of the Sun is known as ____________________.

Accepted Answer

The answer of The study of the oscillations of the...

Question 13

If a star's spectrum does not contain spectral lines characteristic of a certain element,can we conclude that the star does not contain that element? Why or Why not?

Accepted Answer

If a star's spectrum does not contain sp

Question 14

The process of removing an electron from a stable nucleus is known as ____________________.

Accepted Answer

The answer of The process of removing an electron from...

Question 15

What is responsible for binding the electrons to the nucleus?

Accepted Answer

A) Kirchhoff's law 
B) Wien's law 
C) Coulomb force 
D) Balmer series 
A) Kirchhoff's law 
B) Wien's law 
C) Coulomb force 
D) Balmer series

Question 16

What effect does solar activity have on the Earth?

Accepted Answer

Solar activity, which includes phenomena

Question 17

What can astronomers use to measure magnetic fields on the Sun?

Accepted Answer

A) helioseismology 
B) neutrino detectors 
C) a magnetic carpet 
D) the Zeeman effect 
A) helioseismology 
B) neutrino detectors 
C) a magnetic carpet 
D) the Zeeman effect

Question 18

What causes granulation?

Accepted Answer

A) sunspots 
B) rising and sinking gases below the photosphere 
C) shock waves in the corona 
D) the solar wind flowing away from the corona 
A) sunspots 
B) rising and sinking gases below the photosphere 
C) shock waves in the corona 
D) the solar wind flowing away from the corona

Question 19

The Lyman series lines of hydrogen all lie in the infrared.

Accepted Answer

A) True 
 B)False

Question 20

Most of the visible light from the Sun originates in the photosphere.

Accepted Answer

A) True 
 B)False

Solar prominences have twisted and looped shapes because of the solar magnetic field.

-In the diagram,which of the transitions would absorb a photon with the greatest energy (shortest wavelength)?

Why DON'T we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K?

If one star has a temperature of 4,000 K and another star has a temperature of 40,000 K,how much more energy per second will the hotter star radiate from each square metre of its surface? ____________________

The chromosphere of the Sun has a higher temperature than the photosphere.

What evidence do we have that the chromosphere is hotter than the photosphere?

Where are sunspots found during a sunspot maximum?

An atom that has lost an electron is called an ion.

Why is the temperature at the region of a sunspot cooler than the photosphere?

What is the term for the absorption lines in the visible portion of the spectrum of a star that are produced by hydrogen?

Which of the following describes the kind of light used to produce a filtergram,a photograph of the Sun's surface?

The study of the oscillations of the surface and interior of the Sun is known as ____________________.

If a star's spectrum does not contain spectral lines characteristic of a certain element,can we conclude that the star does not contain that element? Why or Why not?

The process of removing an electron from a stable nucleus is known as ____________________.

What is responsible for binding the electrons to the nucleus?

What effect does solar activity have on the Earth?

What can astronomers use to measure magnetic fields on the Sun?

What causes granulation?

The Lyman series lines of hydrogen all lie in the infrared.

Most of the visible light from the Sun originates in the photosphere.

The Scale of the Cosmos

User's Guide to the Sky

The Origin of Modern Astronomy

Astronomical Telescopes and Instruments

The Family of Stars

The Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies

Cosmology in the 21st Century

The Origin of the Solar System

Comparative Planetology of the Terrestrial Planets

Comparative Planetology of the Jovian Planets

Life on Other Worlds

Filters

Exam 5: Sun Light and Sun Atoms

Solar prominences have twisted and looped shapes because of the solar magnetic field.

-In the diagram,which of the transitions would absorb a photon with the greatest energy (shortest wavelength)?

Why DON'T we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K?

If one star has a temperature of 4,000 K and another star has a temperature of 40,000 K,how much more energy per second will the hotter star radiate from each square metre of its surface? ____________________

The chromosphere of the Sun has a higher temperature than the photosphere.

What evidence do we have that the chromosphere is hotter than the photosphere?

Where are sunspots found during a sunspot maximum?

An atom that has lost an electron is called an ion.

Why is the temperature at the region of a sunspot cooler than the photosphere?

What is the term for the absorption lines in the visible portion of the spectrum of a star that are produced by hydrogen?

Which of the following describes the kind of light used to produce a filtergram,a photograph of the Sun's surface?

The study of the oscillations of the surface and interior of the Sun is known as ____________________.

If a star's spectrum does not contain spectral lines characteristic of a certain element,can we conclude that the star does not contain that element? Why or Why not?

The process of removing an electron from a stable nucleus is known as ____________________.

What is responsible for binding the electrons to the nucleus?

What effect does solar activity have on the Earth?

What can astronomers use to measure magnetic fields on the Sun?

What causes granulation?

The Lyman series lines of hydrogen all lie in the infrared.

Most of the visible light from the Sun originates in the photosphere.

The Scale of the Cosmos

User's Guide to the Sky

The Origin of Modern Astronomy

Astronomical Telescopes and Instruments

The Family of Stars

The Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies

Cosmology in the 21st Century

The Origin of the Solar System

Comparative Planetology of the Terrestrial Planets

Comparative Planetology of the Jovian Planets

Life on Other Worlds

Filters