Question 1

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

Question 2

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 3

Which is the longest surviving, and most successful, space telescope?

Accepted Answer

A)  SOFIA 
B)  Chandra 
C)  Kepler Space Observatory 
D)  Hubble Space Telescope 
E)  James Webb Space Telescope 
A)  SOFIA 
B)  Chandra 
C)  Kepler Space Observatory 
D)  Hubble Space Telescope 
E)  James Webb Space Telescope

Question 4

Visible light with wavelengths at the long-wavelength end ( l = 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 5

What is a spectrograph and why is it considered an astronomer's most powerful instrument?

Accepted Answer

Spectrographs are instruments that analy

Question 6

All telescopes must be operated on site by an astronomer or a technician.

Accepted Answer

A) True 
 B)False

Question 7

Why are X-rays and gamma rays considered dangerous forms of light?

Accepted Answer

A)  These forms of light are only produced by large, dangerous machines. 
B)  There is no form of protection from these forms of light. 
C)  These forms of light break through Earth's atmosphere. 
D)  Photons of these wavelengths have high energy. 
E)  These forms of light cause sunburn. 
A)  These forms of light are only produced by large, dangerous machines. 
B)  There is no form of protection from these forms of light. 
C)  These forms of light break through Earth's atmosphere. 
D)  Photons of these wavelengths have high energy. 
E)  These forms of light cause sunburn.

Question 8

Astronomers no longer build large observatories in populated areas in order to avoid _______________.

Accepted Answer

light poll

Question 9

Figure 6-7b
In the above image, what part of the telescope is represented by the pointer?

Accepted Answer

A)  primary lens 
B)  primary mirror 
C)  achromatic lens 
D)  secondary lens 
E)  resolving mirror 
A)  primary lens 
B)  primary mirror 
C)  achromatic lens 
D)  secondary lens 
E)  resolving mirror

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

The ____ of a radio telescope collects and focuses radiation.

Which is the longest surviving, and most successful, space telescope?

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

What is a spectrograph and why is it considered an astronomer's most powerful instrument?

All telescopes must be operated on site by an astronomer or a technician.

Why are X-rays and gamma rays considered dangerous forms of light?

Astronomers no longer build large observatories in populated areas in order to avoid _______________.

Figure 6-7b In the above image, what part of the telescope is represented by the pointer?

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

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

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Exam 6: Light and Telescopes

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

The ____ of a radio telescope collects and focuses radiation.

Which is the longest surviving, and most successful, space telescope?

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

What is a spectrograph and why is it considered an astronomer's most powerful instrument?

All telescopes must be operated on site by an astronomer or a technician.

Why are X-rays and gamma rays considered dangerous forms of light?

Astronomers no longer build large observatories in populated areas in order to avoid _______________.

Figure 6-7b In the above image, what part of the telescope is represented by the pointer?

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

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

Filters