Question 1

CCD images captured from telescopes are often ____ to be stored in a computer's memory for later analysis.

Accepted Answer

A)  pixilated 
B)  compounded 
C)  falsely colored 
D)  divided into smaller images 
E)  converted to numerical data 
A)  pixilated 
B)  compounded 
C)  falsely colored 
D)  divided into smaller images 
E)  converted to numerical data

Question 2

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

Question 3

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 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

What are the three factors which can limit the resolving power of a telescope?

Accepted Answer

diffraction, optical

Question 6

Which power of a telescope reveals fine details within an image?

Accepted Answer

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

Question 7

Refracting telescopes use a mirror to gather and focus light.

Accepted Answer

A) True 
 B)False

Question 8

Optical telescopes are intended for the study of _______________ light.

Accepted Answer

The answer of Optical telescopes are intended for the study...

Question 9

Resolving power is measured in nanometers.

Accepted Answer

A) True 
 B)False

Question 10

A lens called the _______________ is typically used to magnify the image and make it convenient to view distant objects.

Accepted Answer

The answer of A lens called the _______________ is typically...

Question 11

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 12

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 13

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 14

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 15

What is the shape of the segmented mirrors of twin Keck Observatory telescopes, Gran Telescopio Canarias, and soon to be launched James Web Space Telescope?

Accepted Answer

A)  spherical 
B)  hexagonal 
C)  rectangular 
D)  triangular 
E)  octagonal 
A)  spherical 
B)  hexagonal 
C)  rectangular 
D)  triangular 
E)  octagonal

Question 16

Where would you most likely find a large radio telescope?

Accepted Answer

A)  in a busy, populated area 
B)  at the peak of a mountain 
C)  on top of a tall building 
D)  in a mountain valley 
E)  near multiple radio towers 
A)  in a busy, populated area 
B)  at the peak of a mountain 
C)  on top of a tall building 
D)  in a mountain valley 
E)  near multiple radio towers

Question 17

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 18

Explain the difference between cosmic rays and electromagnetic radiation, and how cosmic particles are captured.

Accepted Answer

Unlike electromagnetic radiation, which

Question 19

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

Accepted Answer

To avoid light pollution and l

Question 20

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

Exam 6: Light and Telescopes

CCD images captured from telescopes are often ____ to be stored in a computer's memory for later analysis.

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

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

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

What are the three factors which can limit the resolving power of a telescope?

Which power of a telescope reveals fine details within an image?

Refracting telescopes use a mirror to gather and focus light.

Optical telescopes are intended for the study of _______________ light.

Resolving power is measured in nanometers.

A lens called the _______________ is typically used to magnify the image and make it convenient to view distant objects.

What type of electromagnetic radiation does Chandra collect?

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

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

Which type of electromagnetic wave is the shortest?

What is the shape of the segmented mirrors of twin Keck Observatory telescopes, Gran Telescopio Canarias, and soon to be launched James Web Space Telescope?

Where would you most likely find a large radio telescope?

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

Explain the difference between cosmic rays and electromagnetic radiation, and how cosmic particles are captured.

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

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.

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