Question 1

In what ways are ground- based observatories catching up with Hubble?

Accepted Answer

Ground- based telescopes have now been b

Question 2

Which type of reflector telescope would be the easiest to construct, and why?

Accepted Answer

The prime focus refl

Question 3

A Newtonian reflector needs no secondary mirror.

Accepted Answer

A) True 
 B)False

Question 4

Name the four types of reflector designs.

Accepted Answer

prime focu

Question 5

Compared to optical telescopes, radio telescopes are built large because

Accepted Answer

A)  radio waves are absorbed by the atmosphere. 
B)  they're less expensive to make than optical telescopes. 
C)  radio waves have very long wavelengths. 
D)  atmospheric turbulence is more of a problem. 
E)  radio sources are harder to find. 
A)  radio waves are absorbed by the atmosphere. 
B)  they're less expensive to make than optical telescopes. 
C)  radio waves have very long wavelengths. 
D)  atmospheric turbulence is more of a problem. 
E)  radio sources are harder to find.

Question 6

Photography with film is still the preferred way of capturing fine detail in the faintest, most distant galaxies.

Accepted Answer

A) True 
 B)False

Question 7

Radio astronomy can only be done from up in space, due to our ionosphere.

Accepted Answer

A) True 
 B)False

Question 8

Why are the designs of the Hubble and Chandra Space Telescopes different?

Accepted Answer

Hubble is a Cassegrain reflector, using

Question 9

Why would observing in blue light give better resolution than red light when observing objects close together in the same field of view?

Accepted Answer

The shorter the wave

Question 10

The design of modern X- ray telescopes depends on

Accepted Answer

A)  achromatic lenses to keep the X- rays in focus 
B)  the prime focus design, with mirrors made of iron. 
C)  grazing incidence optics. 
D)  lenses made of germanium. 
E)  the Cassegrain design, with mirrors made of lead. 
A)  achromatic lenses to keep the X- rays in focus 
B)  the prime focus design, with mirrors made of iron. 
C)  grazing incidence optics. 
D)  lenses made of germanium. 
E)  the Cassegrain design, with mirrors made of lead.

Question 11

Using _ _ incidence optics, the Chandra is the X- ray equivalent of the HST.

Accepted Answer

The answer of Using _ _ incidence optics, the Chandra...

Question 12

Explain an advantage a good refractor corrected for chromatic aberration has over any design of reflector of the same size.

Accepted Answer

The lenses of the refractor can transmit

Question 13

Optical interferometry is more in use than radio interferometry.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is currently supplying high resolution X- ray images from space?

Accepted Answer

A)  COBE 
B)  ROSAT 
C)  Chandra 
D)  HEAO- 2 
E)  Einstein 
A)  COBE 
B)  ROSAT 
C)  Chandra 
D)  HEAO- 2 
E)  Einstein

Question 15

What are two advantages of CCDs over photographic films for astronomy?

Accepted Answer

CCDs are much more light effic

Question 16

The Compton GRO was the first telescope used for our exploration of high- energy astronomy.

Accepted Answer

A) True 
 B)False

Question 17

What is true of radio telescopes?

Accepted Answer

A)  They can only be used above the atmosphere. 
B)  They are the smallest, most compact telescopes. 
C)  They are most sensitive to the opacity of the ozone layer. 
D)  They have poorer angular resolution than a refractor of the same size. 
E)  They have better angular resolution than a reflector. 
A)  They can only be used above the atmosphere. 
B)  They are the smallest, most compact telescopes. 
C)  They are most sensitive to the opacity of the ozone layer. 
D)  They have poorer angular resolution than a refractor of the same size. 
E)  They have better angular resolution than a reflector.

Question 18

Why is UV astronomy difficult to do from the ground?

Accepted Answer

The atmosphere blocks most of the UV wav

Question 19

Why is it easier to travel to a remote viewing site with an 8" Cassegrain than an 8" Newtonian reflector?

Accepted Answer

The Cassegrain desig

Question 20

Due to our ozone layer, ultraviolet astronomy must be done from space.

Accepted Answer

A) True 
 B)False

In what ways are ground- based observatories catching up with Hubble?

Which type of reflector telescope would be the easiest to construct, and why?

A Newtonian reflector needs no secondary mirror.

Name the four types of reflector designs.

Compared to optical telescopes, radio telescopes are built large because

Photography with film is still the preferred way of capturing fine detail in the faintest, most distant galaxies.

Radio astronomy can only be done from up in space, due to our ionosphere.

Why are the designs of the Hubble and Chandra Space Telescopes different?

Why would observing in blue light give better resolution than red light when observing objects close together in the same field of view?

The design of modern X- ray telescopes depends on

Using _ _ incidence optics, the Chandra is the X- ray equivalent of the HST.

Explain an advantage a good refractor corrected for chromatic aberration has over any design of reflector of the same size.

Optical interferometry is more in use than radio interferometry.

Which of the following is currently supplying high resolution X- ray images from space?

What are two advantages of CCDs over photographic films for astronomy?

The Compton GRO was the first telescope used for our exploration of high- energy astronomy.

What is true of radio telescopes?

Why is UV astronomy difficult to do from the ground?

Why is it easier to travel to a remote viewing site with an 8" Cassegrain than an 8" Newtonian reflector?

Due to our ozone layer, ultraviolet astronomy must be done from space.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Light and Matter: the Inner Workings of the Cosmos

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 4: Telescopes: the Tools of Astronomy

In what ways are ground- based observatories catching up with Hubble?

Which type of reflector telescope would be the easiest to construct, and why?

A Newtonian reflector needs no secondary mirror.

Name the four types of reflector designs.

Compared to optical telescopes, radio telescopes are built large because

Photography with film is still the preferred way of capturing fine detail in the faintest, most distant galaxies.

Radio astronomy can only be done from up in space, due to our ionosphere.

Why are the designs of the Hubble and Chandra Space Telescopes different?

Why would observing in blue light give better resolution than red light when observing objects close together in the same field of view?

The design of modern X- ray telescopes depends on

Using _ _ incidence optics, the Chandra is the X- ray equivalent of the HST.

Explain an advantage a good refractor corrected for chromatic aberration has over any design of reflector of the same size.

Optical interferometry is more in use than radio interferometry.

Which of the following is currently supplying high resolution X- ray images from space?

What are two advantages of CCDs over photographic films for astronomy?

The Compton GRO was the first telescope used for our exploration of high- energy astronomy.

What is true of radio telescopes?

Why is UV astronomy difficult to do from the ground?

Why is it easier to travel to a remote viewing site with an 8" Cassegrain than an 8" Newtonian reflector?

Due to our ozone layer, ultraviolet astronomy must be done from space.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Light and Matter: the Inner Workings of the Cosmos

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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