Question 1

What phenomena show evidence of the Sun's magnetic field in their looped shapes?

Accepted Answer

A) solar flares 
B) sunspots 
C) granules 
D) prominences 
A) solar flares 
B) sunspots 
C) granules 
D) prominences

Question 2

What is the temperature of an object from which no heat energy can be extracted?

Accepted Answer

A) 0 Kelvin 
B) 100 Kelvin 
C) 0° Celsius 
D) 100° Celsius 
A) 0 Kelvin 
B) 100 Kelvin 
C) 0° Celsius 
D) 100° Celsius

Question 3

What does a non-ionized atom always contain?

Accepted Answer

A) the same number of protons and neutrons 
B) the same number of protons and electrons 
C) twice as many protons as neutrons 
D) twice as many neutrons as protons 
A) the same number of protons and neutrons 
B) the same number of protons and electrons 
C) twice as many protons as neutrons 
D) twice as many neutrons as protons

Question 4

Is it possible for a red star to emit more energy than a blue star?

Accepted Answer

A) No, because the red star has a lower temperature. 
B) Yes, if the red star has a larger area. 
C) Yes, if the red star has a larger wavelength of maximum intensity. 
D) No, because red stars are less massive than blue stars. 
A) No, because the red star has a lower temperature. 
B) Yes, if the red star has a larger area. 
C) Yes, if the red star has a larger wavelength of maximum intensity. 
D) No, because red stars are less massive than blue stars.

Question 5

Why does each element have its own set of characteristic absorption lines?

Accepted Answer

A) The temperature of each element varies. 
B) Elements can exist in different forms of matter. 
C) Electron energy levels differ for each element. 
D) Each element has a different mass. 
A) The temperature of each element varies. 
B) Elements can exist in different forms of matter. 
C) Electron energy levels differ for each element. 
D) Each element has a different mass.

Question 6

An atom is ionized if one of its electrons jumps to a higher energy level in the atom.

Accepted Answer

A) True 
 B)False

Question 7

How does gas move within granules on the solar surface?

Accepted Answer

A) Gas moves upward in the centres of some cells and downward in others; the gas cools as it passes between individual granules. 
B) The gas is actually motionless. The dark regions are absorption features from gases in the photosphere. 
C) Gas moves upward in the bright cell centres and downward around the darker edges. 
D) Gas moves downward in the bright cell centres and upward around the darker edges. 
A) Gas moves upward in the centres of some cells and downward in others; the gas cools as it passes between individual granules. 
B) The gas is actually motionless. The dark regions are absorption features from gases in the photosphere. 
C) Gas moves upward in the bright cell centres and downward around the darker edges. 
D) Gas moves downward in the bright cell centres and upward around the darker edges.

Question 8

The Sun emits its maximum intensity of light at about 520 nm.According to Wien's Law,at what wavelength would the maximum intensity be for a star with a surface temperature twice that of the Sun?

Accepted Answer

A) 260 nm 
B) 1040 nm 
C) 5800 nm 
D) 11600 nm 
A) 260 nm 
B) 1040 nm 
C) 5800 nm 
D) 11600 nm

Question 9

What is the explanation for the pattern of granulation seen on the visible surface of the Sun?

Accepted Answer

A) The granules form the base of a circulation pattern that extends from the photosphere to the outer corona. 
B) The granules are regions of nuclear energy generation in the Sun's photosphere. 
C) Each granule contains a strong magnetic field, which compresses and heats the gas underneath it. 
D) The granules are the tops of hot gases that have risen from the Sun's convective zone. 
A) The granules form the base of a circulation pattern that extends from the photosphere to the outer corona. 
B) The granules are regions of nuclear energy generation in the Sun's photosphere. 
C) Each granule contains a strong magnetic field, which compresses and heats the gas underneath it. 
D) The granules are the tops of hot gases that have risen from the Sun's convective zone.

Question 10

Sunspots are hotter than the photosphere.

Accepted Answer

A) True 
 B)False

Question 11

What everyday object is an example of a place where electrons jump through energy levels and emit energy?

Accepted Answer

A) the full Moon 
B) a gas stove 
C) a neon sign 
D) an incandescent light bulb 
A) the full Moon 
B) a gas stove 
C) a neon sign 
D) an incandescent light bulb

Question 12

In the diagram,draw the transition that would emit a photon with the smallest wavelength.

Accepted Answer

a line fro

Question 13

Which of the following is the term for the hot gases that are the moving extension of the Sun's corona?

Accepted Answer

A) spicules 
B) prominences 
C) supergranules 
D) solar wind 
A) spicules 
B) prominences 
C) supergranules 
D) solar wind

Question 14

-A plot of the continuous spectra of four different stars is shown in the figure.Based on these spectra,which of the stars has the lowest temperature?

Accepted Answer

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

Question 15

What is the term for atoms that have the same number of protons but a different number of neutrons?

Accepted Answer

A) ions 
B) molecules 
C) nuclear pairs 
D) isotopes 
A) ions 
B) molecules 
C) nuclear pairs 
D) isotopes

Question 16

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.

Accepted Answer

A) True 
 B)False

Question 17

The dynamo effect is believed to produce the ____________________ of the Sun.

Accepted Answer

The answer of The dynamo effect is believed to produce...

Question 18

An absorption spectrum is also called a bright line spectrum.

Accepted Answer

A) True 
 B)False

Question 19

Why are the Balmer lines weak in the spectra of hot and cool stars,but strong in the spectra of intermediate temperature stars?

Accepted Answer

The answer of Why are the Balmer lines weak in...

Question 20

The hotter an object,the more blue it appears.

Accepted Answer

A) True 
 B)False

What phenomena show evidence of the Sun's magnetic field in their looped shapes?

What is the temperature of an object from which no heat energy can be extracted?

What does a non-ionized atom always contain?

Is it possible for a red star to emit more energy than a blue star?

Why does each element have its own set of characteristic absorption lines?

An atom is ionized if one of its electrons jumps to a higher energy level in the atom.

How does gas move within granules on the solar surface?

The Sun emits its maximum intensity of light at about 520 nm.According to Wien's Law,at what wavelength would the maximum intensity be for a star with a surface temperature twice that of the Sun?

What is the explanation for the pattern of granulation seen on the visible surface of the Sun?

Sunspots are hotter than the photosphere.

What everyday object is an example of a place where electrons jump through energy levels and emit energy?

In the diagram,draw the transition that would emit a photon with the smallest wavelength.

Which of the following is the term for the hot gases that are the moving extension of the Sun's corona?

-A plot of the continuous spectra of four different stars is shown in the figure.Based on these spectra,which of the stars has the lowest temperature?

What is the term for atoms that have the same number of protons but a different number of neutrons?

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.

The dynamo effect is believed to produce the ____________________ of the Sun.

An absorption spectrum is also called a bright line spectrum.

Why are the Balmer lines weak in the spectra of hot and cool stars,but strong in the spectra of intermediate temperature stars?

The hotter an object,the more blue it appears.

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

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Exam 5: Sun Light and Sun Atoms

What phenomena show evidence of the Sun's magnetic field in their looped shapes?

What is the temperature of an object from which no heat energy can be extracted?

What does a non-ionized atom always contain?

Is it possible for a red star to emit more energy than a blue star?

Why does each element have its own set of characteristic absorption lines?

An atom is ionized if one of its electrons jumps to a higher energy level in the atom.

How does gas move within granules on the solar surface?

The Sun emits its maximum intensity of light at about 520 nm.According to Wien's Law,at what wavelength would the maximum intensity be for a star with a surface temperature twice that of the Sun?

What is the explanation for the pattern of granulation seen on the visible surface of the Sun?

Sunspots are hotter than the photosphere.

What everyday object is an example of a place where electrons jump through energy levels and emit energy?

In the diagram,draw the transition that would emit a photon with the smallest wavelength.

Which of the following is the term for the hot gases that are the moving extension of the Sun's corona?

-A plot of the continuous spectra of four different stars is shown in the figure.Based on these spectra,which of the stars has the lowest temperature?

What is the term for atoms that have the same number of protons but a different number of neutrons?

The Babcock model employs differential rotation of the solar surface and a magnetic dynamo to describe the formation of sunspots.

The dynamo effect is believed to produce the ____________________ of the Sun.

An absorption spectrum is also called a bright line spectrum.

Why are the Balmer lines weak in the spectra of hot and cool stars,but strong in the spectra of intermediate temperature stars?

The hotter an object,the more blue it appears.

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