Question 1

Gamma Rays are a type of electromagnetic radiation.

Accepted Answer

A) True 
 B)False

Question 2

A cool star like Antares would produce more ________ than visible light.

Accepted Answer

The answer of A cool star like Antares would produce...

Question 3

Star A has a temperature 3 times that of star B.Both star A and star B are the same physical size.Which statement about star A and star B below is correct?

Accepted Answer

A)  Star A is redder and dimmer than star B. 
B)  Star A is bluer and dimmer than star B. 
C)  Star A is redder and brighter than star B. 
D)  Star A is bluer and brighter than star B. 
E)  Star A and star B have the same color, but star A is brighter. 
A)  Star A is redder and dimmer than star B. 
B)  Star A is bluer and dimmer than star B. 
C)  Star A is redder and brighter than star B. 
D)  Star A is bluer and brighter than star B. 
E)  Star A and star B have the same color, but star A is brighter.

Question 4

The hottest objects with temperatures in the millions of Kelvins,give off most of their radiation in which part of the electromagnetic spectrum?

Accepted Answer

A)  visible 
B)  radio 
C)  ultraviolet 
D)  X-ray 
E)  gamma ray 
A)  visible 
B)  radio 
C)  ultraviolet 
D)  X-ray 
E)  gamma ray

Question 5

Wave energy can only be transmitted through a material medium.

Accepted Answer

A) True 
 B)False

Question 6

The distance between two successive wave crests is the ________ of a wave.

Accepted Answer

The answer of The distance between two successive wave crests...

Question 7

Which form of electromagnetic radiation is absorbed by carbon dioxide and water vapor in our atmosphere?

Accepted Answer

A)  visible light 
B)  ultraviolet 
C)  infrared 
D)  radio 
E)  gamma rays 
A)  visible light 
B)  ultraviolet 
C)  infrared 
D)  radio 
E)  gamma rays

Question 8

How does human vision's peak in color sensitivity relate to the Sun?

Accepted Answer

Our eyes are tuned to utilize

Question 9

A dim,young star like Herbig-Haro 68 emits most of its light in which part of the electromagnetic spectrum?

Accepted Answer

A)  the visible 
B)  the X-ray 
C)  the ultraviolet 
D)  the radio 
E)  the infrared 
A)  the visible 
B)  the X-ray 
C)  the ultraviolet 
D)  the radio 
E)  the infrared

Question 10

The part of the electromagnetic spectrum with the shortest wavelengths is called ________.

Accepted Answer

The answer of The part of the electromagnetic spectrum with...

Question 11

The light from an object moving tangentially (to your left or right)will exhibit:

Accepted Answer

A)  a blueshift. 
B)  a redshift. 
C)  a shift in peak wavelength towards the red. 
D)  a shift in peak wavelength towards the blue. 
E)  no shift. 
A)  a blueshift. 
B)  a redshift. 
C)  a shift in peak wavelength towards the red. 
D)  a shift in peak wavelength towards the blue. 
E)  no shift.

Question 12

You would perceive a change in a visible light wave's amplitude as a change in its color.

Accepted Answer

A) True 
 B)False

Question 13

The distance from a wave's crest to its undisturbed state is the ________.

Accepted Answer

The answer of The distance from a wave's crest to...

Question 14

Which statement gives the relationship between the waves in the electric and magnetic fields in an electromagnetic wave?

Accepted Answer

A)  They are in phase and parallel with each other in space. 
B)  They are 90 degrees out of phase but parallel in space. 
C)  They are in phase but perpendicular to each other in space. 
D)  They are 180 degrees out of phase and random in their inclinations to each other. 
E)  They are in phase but opposite in direction of motion. 
A)  They are in phase and parallel with each other in space. 
B)  They are 90 degrees out of phase but parallel in space. 
C)  They are in phase but perpendicular to each other in space. 
D)  They are 180 degrees out of phase and random in their inclinations to each other. 
E)  They are in phase but opposite in direction of motion.

Question 15

Light that has all the electrical fields vibrating in the same plane is said to be ________.

Accepted Answer

The answer of Light that has all the electrical fields...

Question 16

Of all the forms of electromagnetic radiation,the one with the lowest frequency is:

Accepted Answer

A)  gamma rays. 
B)  ultraviolet rays. 
C)  visible light. 
D)  microwaves. 
E)  radio waves. 
A)  gamma rays. 
B)  ultraviolet rays. 
C)  visible light. 
D)  microwaves. 
E)  radio waves.

Question 17

There are no radio telescopes in space because:

Accepted Answer

A)  no one has built an antenna large enough to reach astronomical objects yet. 
B)  radio telescopes are too fragile and expensive to make to put into space. 
C)  there is too much radio noise in space, so a radio telescope won't work out there. 
D)  radio waves penetrate Earth's atmosphere so there is no need to put one in space. 
E)  you need an array, like the VLA, to detect ANY radio radiation, so it is just not realistic to put an entire array in space. 
A)  no one has built an antenna large enough to reach astronomical objects yet. 
B)  radio telescopes are too fragile and expensive to make to put into space. 
C)  there is too much radio noise in space, so a radio telescope won't work out there. 
D)  radio waves penetrate Earth's atmosphere so there is no need to put one in space. 
E)  you need an array, like the VLA, to detect ANY radio radiation, so it is just not realistic to put an entire array in space.

Question 18

To see the Sun's hot corona (a temperature of 1,000,000 K),which part of the electromagnetic spectrum should one observe?

Accepted Answer

A)  the visible 
B)  the X-ray 
C)  the ultraviolet 
D)  the radio 
E)  the infrared 
A)  the visible 
B)  the X-ray 
C)  the ultraviolet 
D)  the radio 
E)  the infrared

Question 19

What two regions of the electromagnetic spectrum are best utilized by ground-based astronomers,and why?

Accepted Answer

The atmosphere is op

Question 20

Star A has a temperature 1/4 that of star B.Both star A and star B are the same physical size.Which statement below is correct?

Accepted Answer

A)  Star A is redder and dimmer than star B. 
B)  Star A is bluer and dimmer than star B. 
C)  Star A is redder and brighter than star B. 
D)  Star A is bluer and brighter than star B. 
E)  Star A and star B have the same color, but star A is brighter. 
A)  Star A is redder and dimmer than star B. 
B)  Star A is bluer and dimmer than star B. 
C)  Star A is redder and brighter than star B. 
D)  Star A is bluer and brighter than star B. 
E)  Star A and star B have the same color, but star A is brighter.

Exam 3: Radiation: Information from the Cosmos

Gamma Rays are a type of electromagnetic radiation.

A cool star like Antares would produce more ________ than visible light.

Star A has a temperature 3 times that of star B.Both star A and star B are the same physical size.Which statement about star A and star B below is correct?

The hottest objects with temperatures in the millions of Kelvins,give off most of their radiation in which part of the electromagnetic spectrum?

Wave energy can only be transmitted through a material medium.

The distance between two successive wave crests is the ________ of a wave.

Which form of electromagnetic radiation is absorbed by carbon dioxide and water vapor in our atmosphere?

How does human vision's peak in color sensitivity relate to the Sun?

A dim,young star like Herbig-Haro 68 emits most of its light in which part of the electromagnetic spectrum?

The part of the electromagnetic spectrum with the shortest wavelengths is called ________.

The light from an object moving tangentially (to your left or right)will exhibit:

You would perceive a change in a visible light wave's amplitude as a change in its color.

The distance from a wave's crest to its undisturbed state is the ________.

Which statement gives the relationship between the waves in the electric and magnetic fields in an electromagnetic wave?

Light that has all the electrical fields vibrating in the same plane is said to be ________.

Of all the forms of electromagnetic radiation,the one with the lowest frequency is:

There are no radio telescopes in space because:

To see the Sun's hot corona (a temperature of 1,000,000 K),which part of the electromagnetic spectrum should one observe?

What two regions of the electromagnetic spectrum are best utilized by ground-based astronomers,and why?

Star A has a temperature 1/4 that of star B.Both star A and star B are the same physical size.Which statement below is correct?

Charting the Heavens: The Foundations of Astronomy

The Copernican Revolution: The Birth of Modern Science

Spectroscopy: The Inner Workings of Atoms

Telescopes: The Tools of Astronomy

The Solar System: Comparative Planetology and Formation Models

Earth: Our Home in Space

The Moon and Mercury: Scorched and Battered Worlds

Venus: Earth's Sister Planet

Mars: A Near Miss for Life?

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

Uranus and Neptune: The Outer Worlds of the Solar System

Solar System Debris: Keys to Our Origin

Exoplanets: Planetary Systems Beyond Our Own

The Sun: Our Parent Star

The Stars: Giants,Dwarfs,and the Main Sequence

The Interstellar Medium: Gas and Dust among the Stars

Star Formation: A Traumatic Birth

Stellar Evolution: The Life and Death of a Star

Stellar Explosions: Novae,Supernovae,and the Formation of the Elements

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: A Spiral in Space

Galaxies: Building Blocks of the Universe

Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos

Cosmology: The Big Bang and the Fate of the Universe

The Early Universe: Toward the Beginning of Time

Life in the Universe: Are We Alone?

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