Question 1

What are two advantages of large scopes over smaller ones?

Accepted Answer

A)  Large scopes have a larger field of view and sharper focus. 
B)  Large scopes are not subject to atmospheric turbulence and opacity like smaller ones. 
C)  Large scopes are easier to mount and control than small ones. 
D)  Large telescope have more light gathering power and better resolution. 
E)  Large telescopes give higher magnification and are easier to build. 
A)  Large scopes have a larger field of view and sharper focus. 
B)  Large scopes are not subject to atmospheric turbulence and opacity like smaller ones. 
C)  Large scopes are easier to mount and control than small ones. 
D)  Large telescope have more light gathering power and better resolution. 
E)  Large telescopes give higher magnification and are easier to build.

Question 2

Give an example of the Doppler Effect being used in a baseball game.

Accepted Answer

The Doppler "gun" can focus on

Question 3

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

Accepted Answer

The hotter the star the shorter the wave

Question 4

A hydrogen atom consists of an electron and a(n)

Accepted Answer

A)  proton. 
B)  ion. 
C)  neutrino. 
D)  neutron. 
E)  lepton. 
A)  proton. 
B)  ion. 
C)  neutrino. 
D)  neutron. 
E)  lepton.

Question 5

The spectra of molecules are more complex because molecules can vibrate and ________ instead of just exhibiting electronic transitions like atoms.

Accepted Answer

The answer of The spectra of molecules are more complex...

Question 6

In addition to visible light, Hubble can do some work in the infrared and ultraviolet portions of the spectrum.

Accepted Answer

A) True 
 B)False

Question 7

What do infrared and ultraviolet waves have in common? How do they differ?

Accepted Answer

Both are forms of electromagnetic radiat

Question 8

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 9

________ is the color of the lowest frequency visible light.

Accepted Answer

The answer of ________ is the color of the lowest...

Question 10

In which part of the electromagnetic spectrum have astronomers been unable to get any information?

Accepted Answer

A)  Gamma rays 
B)  X-rays 
C)  Ultraviolet 
D)  Microwaves 
E)  We now can access information in all spectral lengths. 
A)  Gamma rays 
B)  X-rays 
C)  Ultraviolet 
D)  Microwaves 
E)  We now can access information in all spectral lengths.

Question 11

Why must radio dishes be built so large?

Accepted Answer

Radio waves carry little energ

Question 12

Which of these is constant for ALL types of electromagnetic radiation in a vacuum?

Accepted Answer

A)  Amplitude 
B)  Wavelength 
C)  Frequency 
D)  Velocity 
E)  Photon energy 
A)  Amplitude 
B)  Wavelength 
C)  Frequency 
D)  Velocity 
E)  Photon energy

Question 13

The number of waves passing the observer per second is

Accepted Answer

A)  the wavelength in angstroms. 
B)  the amplitude in nm. 
C)  the frequency in Hertz. 
D)  the period in seconds. 
E)  the energy in milliwatts. 
A)  the wavelength in angstroms. 
B)  the amplitude in nm. 
C)  the frequency in Hertz. 
D)  the period in seconds. 
E)  the energy in milliwatts.

Question 14

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 15

What is the primary purpose of an astronomical telescope?

Accepted Answer

A)  To magnify and make distant objects appear closer. 
B)  To separate light into its component colors. 
C)  To measure the intensity of light very accurately. 
D)  To access wavelengths that we cannot see visually. 
E)  To collect a lot of light and bring it to a focus. 
A)  To magnify and make distant objects appear closer. 
B)  To separate light into its component colors. 
C)  To measure the intensity of light very accurately. 
D)  To access wavelengths that we cannot see visually. 
E)  To collect a lot of light and bring it to a focus.

Question 16

The Earth's atmosphere is transparent to ________, as well as some radio and near-infrared wavelengths.

Accepted Answer

The answer of The Earth's atmosphere is transparent to ________,...

Question 17

Which type of radiation can be observed well from Earth's surface?

Accepted Answer

A)  Gamma ray 
B)  X-ray 
C)  Ultraviolet 
D)  Visible 
E)  Infrared 
A)  Gamma ray 
B)  X-ray 
C)  Ultraviolet 
D)  Visible 
E)  Infrared

Question 18

The classical model of the hydrogen atom that explains its spectral line structure is due to

Accepted Answer

A)  Kirchhoff. 
B)  Bohr. 
C)  Fraunhofer. 
D)  Newton. 
E)  Mendeleev. 
A)  Kirchhoff. 
B)  Bohr. 
C)  Fraunhofer. 
D)  Newton. 
E)  Mendeleev.

Question 19

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 20

A neon light (thin hot neon gas in a sealed tube) gives us

Accepted Answer

A)  a continuous spectrum, since the neon is hot enough to glow. 
B)  a few bright emission lines, telling us the gas is neon. 
C)  a continuum, with dark lines identifying the neon atoms that are present. 
D)  a lot of random bright red lines due to the motion of the hot atoms. 
E)  nothing visible to us, but a lot of infrared lines as heat. 
A)  a continuous spectrum, since the neon is hot enough to glow. 
B)  a few bright emission lines, telling us the gas is neon. 
C)  a continuum, with dark lines identifying the neon atoms that are present. 
D)  a lot of random bright red lines due to the motion of the hot atoms. 
E)  nothing visible to us, but a lot of infrared lines as heat.

What are two advantages of large scopes over smaller ones?

Give an example of the Doppler Effect being used in a baseball game.

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

A hydrogen atom consists of an electron and a(n)

The spectra of molecules are more complex because molecules can vibrate and ________ instead of just exhibiting electronic transitions like atoms.

In addition to visible light, Hubble can do some work in the infrared and ultraviolet portions of the spectrum.

What do infrared and ultraviolet waves have in common? How do they differ?

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

________ is the color of the lowest frequency visible light.

In which part of the electromagnetic spectrum have astronomers been unable to get any information?

Why must radio dishes be built so large?

Which of these is constant for ALL types of electromagnetic radiation in a vacuum?

The number of waves passing the observer per second is

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

What is the primary purpose of an astronomical telescope?

The Earth's atmosphere is transparent to ________, as well as some radio and near-infrared wavelengths.

Which type of radiation can be observed well from Earth's surface?

The classical model of the hydrogen atom that explains its spectral line structure is due to

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

A neon light (thin hot neon gas in a sealed tube) gives us

The Night Sky

The Solar System

Earth and Its Moon

The Eight Planets

Small Bodies in the Solar System

Formation of Planetary Systems

The Sun

Measuring the Stars

Star Formation and Evolution

Stellar Explosions

Black Holes

The Milky Way Galaxy

Galaxies

Cosmology and the Universe

Filters

Exam 2: Light and Telescopes

What are two advantages of large scopes over smaller ones?

Give an example of the Doppler Effect being used in a baseball game.

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

A hydrogen atom consists of an electron and a(n)

The spectra of molecules are more complex because molecules can vibrate and ________ instead of just exhibiting electronic transitions like atoms.

In addition to visible light, Hubble can do some work in the infrared and ultraviolet portions of the spectrum.

What do infrared and ultraviolet waves have in common? How do they differ?

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

________ is the color of the lowest frequency visible light.

In which part of the electromagnetic spectrum have astronomers been unable to get any information?

Why must radio dishes be built so large?

Which of these is constant for ALL types of electromagnetic radiation in a vacuum?

The number of waves passing the observer per second is

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

What is the primary purpose of an astronomical telescope?

The Earth's atmosphere is transparent to ________, as well as some radio and near-infrared wavelengths.

Which type of radiation can be observed well from Earth's surface?

The classical model of the hydrogen atom that explains its spectral line structure is due to

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

A neon light (thin hot neon gas in a sealed tube) gives us

The Night Sky

The Solar System

Earth and Its Moon

The Eight Planets

Small Bodies in the Solar System

Formation of Planetary Systems

The Sun

Measuring the Stars

Star Formation and Evolution

Stellar Explosions

Black Holes

The Milky Way Galaxy

Galaxies

Cosmology and the Universe

Filters