Question 1

Wave energy can only be transmitted through a material medium.

Accepted Answer

A) True 
 B)False

Question 2

Electromagnetic radiation

Accepted Answer

A)  has only the properties of waves. 
B)  can behave both as a wave and as a particle. 
C)  can only travel in a dense medium. 
D)  is the same as a sound wave. 
E)  has nothing in common with radio waves. 
A)  has only the properties of waves. 
B)  can behave both as a wave and as a particle. 
C)  can only travel in a dense medium. 
D)  is the same as a sound wave. 
E)  has nothing in common with radio waves.

Question 3

The energy of the photon depends on its .

Accepted Answer

frequency

Question 4

Doubling the temperature of a blackbody will double the total energy it radiates.

Accepted Answer

A) True 
 B)False

Question 5

Knowing the peak emission wavelength of a blackbody allows you to determine its
.

Accepted Answer

The answer of Knowing the peak emission wavelength of a...

Question 6

A wave with a frequency of 2 Hz will have a period of .

Accepted Answer

one- half

Question 7

No one can hear you scream (or fire a weapon) in space, regardless of the Hollywood special effects. Explain why.

Accepted Answer

Sound waves must travel though

Question 8

Why would a hotter star appear blue- white while a cooler star appear red or not be visible at all?

Accepted Answer

Stefan's law notes that the higher the t

Question 9

If a wave's frequency doubles and its speed stays constant, its wavelength

Accepted Answer

A)  is now 4× longer. 
B)  is halved. 
C)  is also doubled. 
D)  becomes 16× longer. 
E)  is unchanged, as c is constant. 
A)  is now 4× longer. 
B)  is halved. 
C)  is also doubled. 
D)  becomes 16× longer. 
E)  is unchanged, as c is constant.

Question 10

The broader the spectral line, the higher the pressure of the gas that is creating it.

Accepted Answer

A) True 
 B)False

Question 11

A jar filled with gas is placed directly in front of a second jar filled with gas. Using a spectroscope to look at one jar through the other you observe dark spectral lines. The jar closest to you contains

Accepted Answer

A)  gas at the same temperature as the other jar. 
B)  the cooler gas. 
C)  gas at very high pressure. 
D)  the hotter gas. 
E)  the exact same gas as the other jar. 
A)  gas at the same temperature as the other jar. 
B)  the cooler gas. 
C)  gas at very high pressure. 
D)  the hotter gas. 
E)  the exact same gas as the other jar.

Question 12

What do gamma rays, X- rays, light, and radio waves all have in common?

Accepted Answer

While they vary widely in wave

Question 13

Which of these is the same for all forms of electromagnetic (E- M) radiation in a vacuum?

Accepted Answer

A)  frequency 
B)  wavelength 
C)  speed 
D)  amplitude 
E)  photon energy 
A)  frequency 
B)  wavelength 
C)  speed 
D)  amplitude 
E)  photon energy

Question 14

Stefan's law notes that total energy radiated is proportional to the _ power of the temperature of the blackbody.

Accepted Answer

The answer of Stefan's law notes that total energy radiated...

Question 15

Spectroscopy of a star can reveal its temperature, composition, and line- of- sight motion.

Accepted Answer

A) True 
 B)False

Question 16

Why do we know that the red Balmer emission line in hydrogen represents a smaller quantum leap than the violet line?

Accepted Answer

Red light has a longer wavelength than v

Question 17

According to Wein's law, the higher the surface temperature of a star, the redder its color.

Accepted Answer

A) True 
 B)False

Question 18

If a star was the same size as our Sun, but was 81 times more luminous, it must be

Accepted Answer

A)  twice as hot as our Sun. 
B)  three times hotter than the Sun. 
C)  four times hotter than the Sun. 
D)  nine times hotter than the Sun. 
E)  81 times hotter than the Sun. 
A)  twice as hot as our Sun. 
B)  three times hotter than the Sun. 
C)  four times hotter than the Sun. 
D)  nine times hotter than the Sun. 
E)  81 times hotter than the Sun.

Question 19

The distance from a wave's crest to its undisturbed position is the _ .

Accepted Answer

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

Question 20

The frequency of a water wave gives us its height.

Accepted Answer

A) True 
 B)False

Wave energy can only be transmitted through a material medium.

Electromagnetic radiation

The energy of the photon depends on its .

Doubling the temperature of a blackbody will double the total energy it radiates.

Knowing the peak emission wavelength of a blackbody allows you to determine its .

A wave with a frequency of 2 Hz will have a period of .

No one can hear you scream (or fire a weapon) in space, regardless of the Hollywood special effects. Explain why.

Why would a hotter star appear blue- white while a cooler star appear red or not be visible at all?

If a wave's frequency doubles and its speed stays constant, its wavelength

The broader the spectral line, the higher the pressure of the gas that is creating it.

A jar filled with gas is placed directly in front of a second jar filled with gas. Using a spectroscope to look at one jar through the other you observe dark spectral lines. The jar closest to you contains

What do gamma rays, X- rays, light, and radio waves all have in common?

Which of these is the same for all forms of electromagnetic (E- M) radiation in a vacuum?

Stefan's law notes that total energy radiated is proportional to the _ power of the temperature of the blackbody.

Spectroscopy of a star can reveal its temperature, composition, and line- of- sight motion.

Why do we know that the red Balmer emission line in hydrogen represents a smaller quantum leap than the violet line?

According to Wein's law, the higher the surface temperature of a star, the redder its color.

If a star was the same size as our Sun, but was 81 times more luminous, it must be

The distance from a wave's crest to its undisturbed position is the _ .

The frequency of a water wave gives us its height.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Telescopes: the Tools of Astronomy

The Solar System: Interplanetary Matter and the Birth of the Planets

Earth and Its Moon: Our Cosmic Backyard

The Terrestrial Planets: a Study in Contrasts

The Jovian Planets: Giants of the Solar System

Moons, Rings, and Plutoids: Small Worlds Among Giants

The Sun: Our Parent Star

Measuring the Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Star Formation in the Milky Way

Stellar Evolution: the Lives and Deaths of Stars

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Normal and Active Galaxies: Building Blocks of the Universe

Hubbles Law and Dark Matter: the Large-Scale Structure of the Cosmos

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

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Exam 3: Light and Matter: the Inner Workings of the Cosmos

Wave energy can only be transmitted through a material medium.

Electromagnetic radiation

The energy of the photon depends on its .

Doubling the temperature of a blackbody will double the total energy it radiates.

Knowing the peak emission wavelength of a blackbody allows you to determine its .

A wave with a frequency of 2 Hz will have a period of .

No one can hear you scream (or fire a weapon) in space, regardless of the Hollywood special effects. Explain why.

Why would a hotter star appear blue- white while a cooler star appear red or not be visible at all?

If a wave's frequency doubles and its speed stays constant, its wavelength

The broader the spectral line, the higher the pressure of the gas that is creating it.

A jar filled with gas is placed directly in front of a second jar filled with gas. Using a spectroscope to look at one jar through the other you observe dark spectral lines. The jar closest to you contains

What do gamma rays, X- rays, light, and radio waves all have in common?

Which of these is the same for all forms of electromagnetic (E- M) radiation in a vacuum?

Stefan's law notes that total energy radiated is proportional to the _ power of the temperature of the blackbody.

Spectroscopy of a star can reveal its temperature, composition, and line- of- sight motion.

Why do we know that the red Balmer emission line in hydrogen represents a smaller quantum leap than the violet line?

According to Wein's law, the higher the surface temperature of a star, the redder its color.

If a star was the same size as our Sun, but was 81 times more luminous, it must be

The distance from a wave's crest to its undisturbed position is the _ .

The frequency of a water wave gives us its height.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Telescopes: the Tools of Astronomy

The Solar System: Interplanetary Matter and the Birth of the Planets

Earth and Its Moon: Our Cosmic Backyard

The Terrestrial Planets: a Study in Contrasts

The Jovian Planets: Giants of the Solar System

Moons, Rings, and Plutoids: Small Worlds Among Giants

The Sun: Our Parent Star

Measuring the Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Star Formation in the Milky Way

Stellar Evolution: the Lives and Deaths of Stars

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Normal and Active Galaxies: Building Blocks of the Universe

Hubbles Law and Dark Matter: the Large-Scale Structure of the Cosmos

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

Filters