Question 1

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

Accepted Answer

light poll

Question 2

What is a major selecting factor for astronomers looking to place a telescope atop a mountain?

Accepted Answer

A)  non-turbulent airflow 
B)  percentage of tree-coverage 
C)  amount of precipitation 
D)  the country it is located within 
E)  the economics of the location 
A)  non-turbulent airflow 
B)  percentage of tree-coverage 
C)  amount of precipitation 
D)  the country it is located within 
E)  the economics of the location

Question 3

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 4

No radio waves penetrate the Earth's atmosphere.

Accepted Answer

A) True 
 B)False

Question 5

Light-gathering power and resolving power both depend on what characteristic of a telescope?

Accepted Answer

A)  number of lenses 
B)  magnification 
C)  focal length 
D)  location 
E)  diameter 
A)  number of lenses 
B)  magnification 
C)  focal length 
D)  location 
E)  diameter

Question 6

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 7

Cosmic rays are made of photons.

Accepted Answer

A) True 
 B)False

Question 8

A spectrograph spreads out light according to ____ to form a spectrum.

Accepted Answer

A)  wavelength 
B)  frequency 
C)  interference 
D)  aberration 
E)  grating 
A)  wavelength 
B)  frequency 
C)  interference 
D)  aberration 
E)  grating

Question 9

Diffraction, optical quality, and atmospheric conditions all contribute to the limitations of what power of a telescope?

Accepted Answer

A)  resolving power 
B)  magnifying power 
C)  diffraction power 
D)  light-gathering power 
E)  focusing power 
A)  resolving power 
B)  magnifying power 
C)  diffraction power 
D)  light-gathering power 
E)  focusing power

Question 10

What telescope instrument is used to counter the eastward rotation of Earth?

Accepted Answer

A)  Newtonian focus 
B)  sidereal drive 
C)  active optics 
D)  Cassegrain focus 
E)  floppy mirrors 
A)  Newtonian focus 
B)  sidereal drive 
C)  active optics 
D)  Cassegrain focus 
E)  floppy mirrors

Question 11

A(n) __________ is both an image-recording device and a photometer.

Accepted Answer

A)  interferometer 
B)  spectrograph 
C)  CCD 
D)  primary mirror 
E)  Newtonian focus 
A)  interferometer 
B)  spectrograph 
C)  CCD 
D)  primary mirror 
E)  Newtonian focus

Question 12

What unit is used to measure wavelengths?

Accepted Answer

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

Question 13

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 14

Which form of radiation has the lowest frequency?

Accepted Answer

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

Question 15

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 16

If telescope A is 160 cm in diameter, and telescope B is 32 cm in diameter, how much more light does telescope A gather than telescope B?

Accepted Answer

A)  5 times 
B)  10 times 
C)  20 times 
D)  25 times 
E)  100 times 
A)  5 times 
B)  10 times 
C)  20 times 
D)  25 times 
E)  100 times

Question 17

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

Accepted Answer

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

Question 18

Match between columns
                        Premises: Arecibo Telescope
Keck Observatory
James Webb Space Telescope
Very Large Array
SOFIA
HST
Yerkes Observatory
Chandra

Accepted Answer

The Answer of A space-based telescope that detects visible, UV, is...

Question 19

Why do large reflecting telescopes, like the Keck Observatories, have segmented mirrors?

Accepted Answer

Segmented mirrors of large telescopes re

Question 20

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

Accepted Answer

A) True 
 B)False

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

What is a major selecting factor for astronomers looking to place a telescope atop a mountain?

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

No radio waves penetrate the Earth's atmosphere.

Light-gathering power and resolving power both depend on what characteristic of a telescope?

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

Cosmic rays are made of photons.

A spectrograph spreads out light according to ____ to form a spectrum.

Diffraction, optical quality, and atmospheric conditions all contribute to the limitations of what power of a telescope?

What telescope instrument is used to counter the eastward rotation of Earth?

A(n) __________ is both an image-recording device and a photometer.

What unit is used to measure wavelengths?

What type of electromagnetic radiation does Chandra collect?

Which form of radiation has the lowest frequency?

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.

If telescope A is 160 cm in diameter, and telescope B is 32 cm in diameter, how much more light does telescope A gather than telescope B?

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

Why do large reflecting telescopes, like the Keck Observatories, have segmented mirrors?

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

Here and Now

A User S Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Atoms and Spectra

The Sun

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 6: Light and Telescopes

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

What is a major selecting factor for astronomers looking to place a telescope atop a mountain?

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

No radio waves penetrate the Earth's atmosphere.

Light-gathering power and resolving power both depend on what characteristic of a telescope?

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

Cosmic rays are made of photons.

A spectrograph spreads out light according to ____ to form a spectrum.

Diffraction, optical quality, and atmospheric conditions all contribute to the limitations of what power of a telescope?

What telescope instrument is used to counter the eastward rotation of Earth?

A(n) __________ is both an image-recording device and a photometer.

What unit is used to measure wavelengths?

What type of electromagnetic radiation does Chandra collect?

Which form of radiation has the lowest frequency?

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.

If telescope A is 160 cm in diameter, and telescope B is 32 cm in diameter, how much more light does telescope A gather than telescope B?

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

Why do large reflecting telescopes, like the Keck Observatories, have segmented mirrors?

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

Here and Now

A User S Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Atoms and Spectra

The Sun

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology: Life on Other Worlds

Filters