Question 1

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.

Question 2

Explain interferometry and provide an example of an observatory that uses this technique.

Accepted Answer

Astronomers have been able to achieve ve...

Question 3

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

Question 4

What unit is used to measure wavelengths?

Accepted Answer

A)   arc second
B)   photons
C)   degrees
D)   nanometer
E)   pixels

Question 5

Which part of a telescope is responsible for magnifying an image?

Accepted Answer

A)   eyepiece
B)   primary lens
C)   primary mirror
D)   tube diameter
E)   photometer

Question 6

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 7

Which form of radiation has the lowest frequency?

Accepted Answer

A)   gamma
B)   microwave
C)   ultraviolet
D)   infrared
E)   visible

Question 8

The larger the diameter of a telescope, the more light it will collect.

Accepted Answer

A) True 
 B)False

Question 9

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

Question 10

What are the advantages of putting telescopes in space?  Provide specific examples of three current space telescopes.

Accepted Answer

The greatest advantage is the lack of "s...

Question 11

Why have so many optical telescopes been built atop Mauna Kea, Hawai'i?

Accepted Answer

To avoid light pollution and l...

Question 12

What does chromatic aberration separate within refracting telescopes?

Accepted Answer

A)   color
B)   lenses
C)   images
D)   photons
E)   focal points

Question 13

Which type of electromagnetic wave is the shortest?

Accepted Answer

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

Question 14

Refracting telescopes use a mirror to gather and focus light.

Accepted Answer

A) True 
 B)False

Question 15

Red light of the visible light spectrum has longer wavelengths than blue.

Accepted Answer

A) True 
 B)False

Question 16

Large doses of _______________ light can cause sunburn and skin cancers.

Accepted Answer

The answer of Large doses of _______________ light can cause...

Question 17

Built in 1963, the _______________ telescope in Puerto Rico is the largest single radio dish in the world.

Accepted Answer

The answer of Built in 1963, the _______________ telescope in...

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

Name all the forms of radiation within the electromagnetic spectrum in the order from shortest to longest wavelength.

Accepted Answer

Gamma rays, X-rays, ultraviole...

Question 20

Why are reflecting telescopes cheaper to build than refracting telescopes?

Accepted Answer

Mirrors are much less expensive than len...

Exam 6: Light and Telescopes

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

Correct AnswerverifiedShow Answer

What does chromatic aberration separate within refracting telescopes?

Correct AnswerverifiedShow Answer

Which type of focus is most common for larger telescopes?

Correct AnswerverifiedShow Answer

What are the advantages of putting telescopes in space? Provide specific examples of three current space telescopes.

Correct AnswerverifiedThe greatest advantage is the lack of "s...View AnswerShow Answer

Which form of radiation has the lowest frequency?

Correct AnswerverifiedShow Answer

Which type of electromagnetic wave is the shortest?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Built in 1963, the _______________ telescope in Puerto Rico is the largest single radio dish in the world.

Correct AnswerverifiedShow Answer

Why have so many optical telescopes been built atop Mauna Kea, Hawai'i?

Correct AnswerverifiedTo avoid light pollution and l...View AnswerShow Answer

Red light of the visible light spectrum has longer wavelengths than blue.

Correct AnswerverifiedShow Answer

What unit is used to measure wavelengths?

Correct AnswerverifiedShow Answer

Refracting telescopes use a mirror to gather and focus light.

Correct AnswerverifiedShow Answer

Large doses of _______________ light can cause sunburn and skin cancers.

Correct AnswerverifiedShow Answer

Which part of a telescope is responsible for magnifying an image?

Correct AnswerverifiedShow Answer

Name all the forms of radiation within the electromagnetic spectrum in the order from shortest to longest wavelength.

Correct AnswerverifiedGamma rays, X-rays, ultraviole...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

Why are reflecting telescopes cheaper to build than refracting telescopes?

Correct AnswerverifiedMirrors are much less expensive than len...View AnswerShow Answer

The larger the diameter of a telescope, the more light it will collect.

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

Explain interferometry and provide an example of an observatory that uses this technique.

Correct AnswerverifiedAstronomers have been able to achieve ve...View AnswerShow Answer

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The greatest advantage is the lack of "s...
View Answer

Correct Answer
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To avoid light pollution and l...
View Answer

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified
Gamma rays, X-rays, ultraviole...
View Answer

Correct Answer
verified

Correct Answer
verified
Mirrors are much less expensive than len...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Astronomers have been able to achieve ve...
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