Quiz
Telescopes
4 years ago by
craniumfire
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  • Question 1
    30 seconds
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    Q. Who invented the telescope?
    answer choices
    Galileo
    Plato
    Ptolemy
    it's unknown
  • Question 2
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    Q. What was Galileo's contribution to the telescope?
    answer choices
    He invented it
    He patented it
    He discovered it
    He promoted it
  • Question 3
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    Q. This instrument can be thought of as a large light bucket
    answer choices
    your eyes
    a lens
    a telescope
    a satellite dish
  • Question 4
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    Q. The "collector", or "light-gathering part" of the telescope is called the _____
    answer choices
    objective
    ocular
    eye piece
    refractor
  • Question 5
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    Q. If the collector is made 10 times wider, how much more light is collected?
    answer choices
    2 times more
    10 times more
    20 times more
    100 times more
  • Question 6
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    Q. When light passes through a lens, it _____
    answer choices
    reflects
    is absorbed
    bounces
    changes direction
  • Question 7
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    Q. The bending of light through a lens is called _____
    answer choices
    reflection
    refraction
    diffraction
    absorption
  • Question 8
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    Q. When the light comes to a focus, using a refracting telescope, it is _____
    answer choices
    upside-down, and flipped left and right
    only flipped left and right
    only upside-down
    unchanged
  • Question 9
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    Q. The image, observed in a telescope, is _____
    answer choices
    bigger than the object
    the same size as the object
    slightly smaller than the object
    much smaller than the object
  • Question 10
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    Q. The ability to separate two objects that are very close together, is called the _____
    answer choices
    orientation
    attitude
    magnification
    resolution 
  • Question 11
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    Q. In general the bigger the telescope's objective the better your _____
    answer choices
    resolution
    magnification
    attitude
    orientation
  • Question 12
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    Q. Telescopes that use mirrors are called _____
    answer choices
    refractors
    reflectors
    catadioptric
    resolving
  • Question 13
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    Q. Who was the first to develop reflecting telescopes?
    answer choices
    Nicolaus Copernicus
    Isaac Newton
    Galileo Galilei
    Tycho Brahe
  • Question 14
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    Q. What do modern professional-grade optical telescopes use as their objective?
    answer choices
    lenses
    mirrors
    electronic detectors
    photographic film
  • Question 15
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    Q. According to Phil, "the problem with astronomers" is getting them to _____
    answer choices
    show you their telescope
    talk about astronomy
    stop talking about astronomy
    host a star party
  • Question 16
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    Q. Who discovered infrared light, a kind of light invisible to our eyes?
    answer choices
    Robert Hooke
    Isaac Newton
    Galileo Galilei
    William Herschel
  • Question 17
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    Q. What kind of detector is used for radio waves?
    answer choices
    a refracting telescope
    a metal dish
    a reflecting telescope
    a digital camera
  • Question 18
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    Q. Our eyes act like movie cameras, taking pictures at a frame rate of about _____
    answer choices
    1.4 images per second
    14 images per second
    140 images per second
    1,400 images per second
  • Question 19
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    Q. Photographs allow us to see fainter objects by taking long _____
    answer choices
    wavelength
    exposures
    body tubes
    frame rates
  • Question 20
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    Q. Which detectors are dozens of times more light-sensitive than film?
    answer choices
    your eyes
    digital detectors
    computers
    mirrors
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