Question 1

The ____________________ of the Sun is composed of ionized gas and produces a continuous spectrum with a superimposed emission spectrum.

Accepted Answer

The answer of The ____________________ of the Sun is composed...

Question 2

What are the three layers of the Sun's atmosphere,in order of increasing distance from the surface?

Accepted Answer

A) corona, chromosphere, photosphere 
B) photosphere, corona, chromosphere 
C) photosphere, chromosphere, corona 
D) chromosphere, photosphere, corona 
A) corona, chromosphere, photosphere 
B) photosphere, corona, chromosphere 
C) photosphere, chromosphere, corona 
D) chromosphere, photosphere, corona

Question 3

____________________ is a measure of the amount of energy due to the motion of the particles in a gas,liquid,or solid.

Accepted Answer

The answer of ____________________ is a measure of the amount...

Question 4

The Sun appears to rotate only because the Earth is revolving about the Sun.

Accepted Answer

A) True 
 B)False

Question 5

Isotopes of the same element have the same number of protons.

Accepted Answer

A) True 
 B)False

Question 6

What are the two most abundant elements in the Sun?

Accepted Answer

A) nitrogen and oxygen 
B) hydrogen and helium 
C) carbon and hydrogen 
D) carbon and nitrogen 
A) nitrogen and oxygen 
B) hydrogen and helium 
C) carbon and hydrogen 
D) carbon and nitrogen

Question 7

What occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field?

Accepted Answer

A) dynamo effect 
B) Zeeman effect 
C) Babcock effect 
D) aurora 
A) dynamo effect 
B) Zeeman effect 
C) Babcock effect 
D) aurora

Question 8

The Doppler effect is sensitive only to motion along the line of sight.

Accepted Answer

A) True 
 B)False

Question 9

Summer temperatures on Mars can reach 310 K.How would humans deal with such a temperature on Earth?

Accepted Answer

A) This temperature is so low that a human would freeze to death. 
B) This is a Canadian winter temperature; humans could survive with a winter jacket and boots. 
C) This is a Canadian summer temperature; humans could be comfortable in shorts and a T-shirt. 
D) This temperature is so high that a human would die of heatstroke. 
A) This temperature is so low that a human would freeze to death. 
B) This is a Canadian winter temperature; humans could survive with a winter jacket and boots. 
C) This is a Canadian summer temperature; humans could be comfortable in shorts and a T-shirt. 
D) This temperature is so high that a human would die of heatstroke.

Question 10

-The diagram illustrates a light source,a gas cloud,and three different lines of sight the observer is located at the numbered positions).Along which line of sight would an observer see a continuous spectrum?

Accepted Answer

A) 1 
B) 2 
C) 3 
A) 1 
B) 2 
C) 3

Question 11

Which of the following is NOT a property of the Sun's chromosphere?

Accepted Answer

A) cooler than the photosphere 
B) is below the corona 
C) is above the visible surface of the Sun 
D) produces an emission spectrum 
A) cooler than the photosphere 
B) is below the corona 
C) is above the visible surface of the Sun 
D) produces an emission spectrum

Question 12

-In the diagram,which of the transitions would absorb a photon with the least energy (longest 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 13

Why is Cecilia Payne's Ph.D.thesis sometimes called "the most important in astronomy"?

Accepted Answer

A) She was the first person to show that the Sun is mostly hydrogen. 
B) She was the first person to analyze spectra of stars. 
C) Her analysis of stellar spectra showed that stars generate their own light. 
D) Her analysis of the Sun's spectrum resulted in the discovery of helium. 
A) She was the first person to show that the Sun is mostly hydrogen. 
B) She was the first person to analyze spectra of stars. 
C) Her analysis of stellar spectra showed that stars generate their own light. 
D) Her analysis of the Sun's spectrum resulted in the discovery of helium.

Question 14

A certain spectral line of hydrogen has a wavelength of 410.2 nm when observed in the laboratory.If the same line appears in a star's spectrum at 410.0 nm,what can you conclude about the motion of the star?

Accepted Answer

A) The star is moving away from the observer. 
B) The star is moving toward the observer. 
C) The star is moving but the direction is not known. 
D) The star is not moving toward or away from the observer. 
A) The star is moving away from the observer. 
B) The star is moving toward the observer. 
C) The star is moving but the direction is not known. 
D) The star is not moving toward or away from the observer.

Question 15

The peak wavelength in the continuum emission spectrum of a body is inversely proportional to its ____________________.

Accepted Answer

The answer of The peak wavelength in the continuum emission...

Question 16

You are standing near a railway track and a train is moving toward you at 100 kph and blowing its whistle.What will you notice as the train moves past you?

Accepted Answer

A) As the train approaches, the horn will sound lower in pitch than when the train is moving away. 
B) As the train approaches, the horn will sound higher in pitch than when the train is moving away. 
C) As the train approaches, the headlight will appear bluer than when the train is moving away. 
D) As the train approaches, the headlight will appear redder than when the train is moving away. 
A) As the train approaches, the horn will sound lower in pitch than when the train is moving away. 
B) As the train approaches, the horn will sound higher in pitch than when the train is moving away. 
C) As the train approaches, the headlight will appear bluer than when the train is moving away. 
D) As the train approaches, the headlight will appear redder than when the train is moving away.

Question 17

Hydrogen alpha is the longest wavelength Balmer line.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following measures the average speed of the particles (atoms or molecules)in a gas?

Accepted Answer

A) heat 
B) composition 
C) temperature 
D) binding energy 
A) heat 
B) composition 
C) temperature 
D) binding energy

Question 19

The ____________________ shows that sunspots are associated with magnetic activity.

Accepted Answer

The answer of The ____________________ shows that sunspots are associated...

Question 20

What do astronomers believe heats up the corona and chromosphere of the Sun?

Accepted Answer

A) shock waves rising from below the photosphere 
B) the solar wind 
C) sunspots 
D) high energy particles being accelerated by the Sun's magnetic field 
A) shock waves rising from below the photosphere 
B) the solar wind 
C) sunspots 
D) high energy particles being accelerated by the Sun's magnetic field

The ____________________ of the Sun is composed of ionized gas and produces a continuous spectrum with a superimposed emission spectrum.

What are the three layers of the Sun's atmosphere,in order of increasing distance from the surface?

____________________ is a measure of the amount of energy due to the motion of the particles in a gas,liquid,or solid.

The Sun appears to rotate only because the Earth is revolving about the Sun.

Isotopes of the same element have the same number of protons.

What are the two most abundant elements in the Sun?

What occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field?

The Doppler effect is sensitive only to motion along the line of sight.

Summer temperatures on Mars can reach 310 K.How would humans deal with such a temperature on Earth?

-The diagram illustrates a light source,a gas cloud,and three different lines of sight the observer is located at the numbered positions).Along which line of sight would an observer see a continuous spectrum?

Which of the following is NOT a property of the Sun's chromosphere?

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

Why is Cecilia Payne's Ph.D.thesis sometimes called "the most important in astronomy"?

A certain spectral line of hydrogen has a wavelength of 410.2 nm when observed in the laboratory.If the same line appears in a star's spectrum at 410.0 nm,what can you conclude about the motion of the star?

The peak wavelength in the continuum emission spectrum of a body is inversely proportional to its ____________________.

You are standing near a railway track and a train is moving toward you at 100 kph and blowing its whistle.What will you notice as the train moves past you?

Hydrogen alpha is the longest wavelength Balmer line.

Which of the following measures the average speed of the particles (atoms or molecules)in a gas?

The ____________________ shows that sunspots are associated with magnetic activity.

What do astronomers believe heats up the corona and chromosphere of the Sun?

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

The ____________________ of the Sun is composed of ionized gas and produces a continuous spectrum with a superimposed emission spectrum.

What are the three layers of the Sun's atmosphere,in order of increasing distance from the surface?

____________________ is a measure of the amount of energy due to the motion of the particles in a gas,liquid,or solid.

The Sun appears to rotate only because the Earth is revolving about the Sun.

Isotopes of the same element have the same number of protons.

What are the two most abundant elements in the Sun?

What occurs when a rapidly rotating conductor is stirred by convection to produce a magnetic field?

The Doppler effect is sensitive only to motion along the line of sight.

Summer temperatures on Mars can reach 310 K.How would humans deal with such a temperature on Earth?

-The diagram illustrates a light source,a gas cloud,and three different lines of sight the observer is located at the numbered positions).Along which line of sight would an observer see a continuous spectrum?

Which of the following is NOT a property of the Sun's chromosphere?

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

Why is Cecilia Payne's Ph.D.thesis sometimes called "the most important in astronomy"?

A certain spectral line of hydrogen has a wavelength of 410.2 nm when observed in the laboratory.If the same line appears in a star's spectrum at 410.0 nm,what can you conclude about the motion of the star?

The peak wavelength in the continuum emission spectrum of a body is inversely proportional to its ____________________.

You are standing near a railway track and a train is moving toward you at 100 kph and blowing its whistle.What will you notice as the train moves past you?

Hydrogen alpha is the longest wavelength Balmer line.

Which of the following measures the average speed of the particles (atoms or molecules)in a gas?

The ____________________ shows that sunspots are associated with magnetic activity.

What do astronomers believe heats up the corona and chromosphere of the Sun?

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