Question 1

Cosmic rays are made of photons.

Accepted Answer

A) True 
 B)False  False

Question 2

What does a refracting telescope use to gather and focus light?

Accepted Answer

A)  eyepiece 
B)  mirror 
C)  lens 
D)  photometer 
E)  active optics 
A)  eyepiece 
B)  mirror 
C)  lens 
D)  photometer 
E)  active optics C

Question 3

Jenny, who lives on a farm in a rural part of New York, calls her cousin, Karen, in Brooklyn, to tell her that she can see the Milky Way in tonight's night sky. However, Karen says she can't see it at all.  What is preventing Karen from seeing the Milky Way in the night sky?

Accepted Answer

A)  Karen does not have a strong enough telescope. 
B)  Karen lives in an area with light pollution. 
C)  Karen isn't in the same hemisphere as Jenny. 
D)  Karen needs to use a reflecting telescope. 
E)  Karen isn't looking in the right direction. 
A)  Karen does not have a strong enough telescope. 
B)  Karen lives in an area with light pollution. 
C)  Karen isn't in the same hemisphere as Jenny. 
D)  Karen needs to use a reflecting telescope. 
E)  Karen isn't looking in the right direction. B

Question 4

What is the function of the receiver antenna of a radio telescope?

Accepted Answer

A)  To absorb the radio energy collected by the dish 
B)  To collect and focus the radiation 
C)  To follow a signal 
D)  To move the telescope 
E)  To control the shape of the dish 
A)  To absorb the radio energy collected by the dish 
B)  To collect and focus the radiation 
C)  To follow a signal 
D)  To move the telescope 
E)  To control the shape of the dish

Question 5

A optical distortion of refracting telescopes called _______________ causes a separation of colors, such as when you focus on one color, the other colors in an image are blurred.

Accepted Answer

chromatic

Question 6

What modern-day instrument do astronomers use to record images from telescopes?

Accepted Answer

A)  photometer 
B)  grating device 
C)  spectrograph 
D)  photographic plate 
E)  charge-coupled device 
A)  photometer 
B)  grating device 
C)  spectrograph 
D)  photographic plate 
E)  charge-coupled device

Question 7

What type of electromagnetic radiation does Chandra collect?

Accepted Answer

A)  visible light 
B)  ultraviolet 
C)  microwave 
D)  infrared 
E)  X-ray 
A)  visible light 
B)  ultraviolet 
C)  microwave 
D)  infrared 
E)  X-ray

Question 8

The ____ of a radio telescope collects and focuses radiation.

Accepted Answer

A)  lens 
B)  dish 
C)  mirror 
D)  antenna 
E)  computer 
A)  lens 
B)  dish 
C)  mirror 
D)  antenna 
E)  computer

Question 9

Short-focal-length lenses and mirrors must be strongly curved.

Accepted Answer

A) True 
 B)False

Question 10

It is a common misconception that the purpose of an astronomical telescope is to _______________ images .

Accepted Answer

The answer of It is a common misconception that the...

Question 11

One way to measure and compare the strength of the radio signal at various places in the sky is to produce a(n) _______________ in which each color marks areas of similar radio intensity.

Accepted Answer

representational-col

Question 12

Which telescope will be launched into solar orbit and eventually replace observations made by the Hubble Space Telescope?

Accepted Answer

A)  Hinode 
B)  Kepler 
C)  Chandra 
D)  JWST 
E)  Fermi 
A)  Hinode 
B)  Kepler 
C)  Chandra 
D)  JWST 
E)  Fermi

Question 13

Reflecting telescopes suffer from chromatic aberration because the light must pass through the glass.

Accepted Answer

A) True 
 B)False

Question 14

Visible light with wavelengths at the long-wavelength end (λ  = 700 nm) appears as which color?

Accepted Answer

A)  red 
B)  orange 
C)  yellow 
D)  green 
E)  blue 
A)  red 
B)  orange 
C)  yellow 
D)  green 
E)  blue

Question 15

Why aren't optical or radio telescopes used in particle astronomy, which studies cosmic waves and gravity waves?

Accepted Answer

A)  Cosmic and gravity waves are too dangerous to detect. 
B)  Particle astronomy can only be studied in deep space. 
C)  Cosmic and gravity waves are too large of particles for ground-based telescopes. 
D)  Optical and radio telescopes can only detect electromagnetic radiation. 
E)  Optical and radio telescopes are not technologically advanced enough to capture these particles. 
A)  Cosmic and gravity waves are too dangerous to detect. 
B)  Particle astronomy can only be studied in deep space. 
C)  Cosmic and gravity waves are too large of particles for ground-based telescopes. 
D)  Optical and radio telescopes can only detect electromagnetic radiation. 
E)  Optical and radio telescopes are not technologically advanced enough to capture these particles.

Question 16

Which type of focus is most common for larger telescopes?

Accepted Answer

A)  Cassegrain focus 
B)  Galilean focus 
C)  Newtonian focus 
D)  Copernican focus 
E)  Schmidt-Cassegrain focus 
A)  Cassegrain focus 
B)  Galilean focus 
C)  Newtonian focus 
D)  Copernican focus 
E)  Schmidt-Cassegrain focus

Question 17

All large astronomical telescopes built since the start of the 20th century have been _______________ telescopes.

Accepted Answer

The answer of All large astronomical telescopes built since the...

Question 18

Which type of electromagnetic wave is the shortest?

Accepted Answer

A)  radio 
B)  X-rays 
C)  visible light 
D)  gamma 
E)  microwave 
A)  radio 
B)  X-rays 
C)  visible light 
D)  gamma 
E)  microwave

Question 19

What is so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries, and the soon-to-be-built Giant Magellan Telescope?

Accepted Answer

A)  The mirrors are made of a newly designed metallic material. 
B)  The mirrors can fold up went not in use. 
C)  The mirrors are inexpensive. 
D)  The mirrors are segmented. 
E)  The mirrors are thin. 
A)  The mirrors are made of a newly designed metallic material. 
B)  The mirrors can fold up went not in use. 
C)  The mirrors are inexpensive. 
D)  The mirrors are segmented. 
E)  The mirrors are thin.

Question 20

Two devices that spread white light into a spectrum are __________ and __________.

Accepted Answer

prisms/gratings,pris

Cosmic rays are made of photons.

What does a refracting telescope use to gather and focus light?

Jenny, who lives on a farm in a rural part of New York, calls her cousin, Karen, in Brooklyn, to tell her that she can see the Milky Way in tonight's night sky. However, Karen says she can't see it at all. What is preventing Karen from seeing the Milky Way in the night sky?

What is the function of the receiver antenna of a radio telescope?

A optical distortion of refracting telescopes called _______________ causes a separation of colors, such as when you focus on one color, the other colors in an image are blurred.

What modern-day instrument do astronomers use to record images from telescopes?

What type of electromagnetic radiation does Chandra collect?

The ____ of a radio telescope collects and focuses radiation.

Short-focal-length lenses and mirrors must be strongly curved.

It is a common misconception that the purpose of an astronomical telescope is to _______________ images .

One way to measure and compare the strength of the radio signal at various places in the sky is to produce a(n) _______________ in which each color marks areas of similar radio intensity.

Which telescope will be launched into solar orbit and eventually replace observations made by the Hubble Space Telescope?

Reflecting telescopes suffer from chromatic aberration because the light must pass through the glass.

Visible light with wavelengths at the long-wavelength end (λ = 700 nm) appears as which color?

Why aren't optical or radio telescopes used in particle astronomy, which studies cosmic waves and gravity waves?

Which type of focus is most common for larger telescopes?

All large astronomical telescopes built since the start of the 20th century have been _______________ telescopes.

Which type of electromagnetic wave is the shortest?

What is so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries, and the soon-to-be-built Giant Magellan Telescope?

Two devices that spread white light into a spectrum are and .

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Astrobiology

Filters

Exam 6: Light and Telescopes

Cosmic rays are made of photons.

What does a refracting telescope use to gather and focus light?

Jenny, who lives on a farm in a rural part of New York, calls her cousin, Karen, in Brooklyn, to tell her that she can see the Milky Way in tonight's night sky. However, Karen says she can't see it at all. What is preventing Karen from seeing the Milky Way in the night sky?

What is the function of the receiver antenna of a radio telescope?

A optical distortion of refracting telescopes called _______________ causes a separation of colors, such as when you focus on one color, the other colors in an image are blurred.

What modern-day instrument do astronomers use to record images from telescopes?

What type of electromagnetic radiation does Chandra collect?

The ____ of a radio telescope collects and focuses radiation.

Short-focal-length lenses and mirrors must be strongly curved.

It is a common misconception that the purpose of an astronomical telescope is to _______________ images .

One way to measure and compare the strength of the radio signal at various places in the sky is to produce a(n) _______________ in which each color marks areas of similar radio intensity.

Which telescope will be launched into solar orbit and eventually replace observations made by the Hubble Space Telescope?

Reflecting telescopes suffer from chromatic aberration because the light must pass through the glass.

Visible light with wavelengths at the long-wavelength end (λ = 700 nm) appears as which color?

Why aren't optical or radio telescopes used in particle astronomy, which studies cosmic waves and gravity waves?

Which type of focus is most common for larger telescopes?

All large astronomical telescopes built since the start of the 20th century have been _______________ telescopes.

Which type of electromagnetic wave is the shortest?

What is so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries, and the soon-to-be-built Giant Magellan Telescope?

Two devices that spread white light into a spectrum are __________ and __________.

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Astrobiology

Filters

Two devices that spread white light into a spectrum are and .