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5 Written questions

5 Matching questions

  1. Why was adaptive optics developed?
  2. Are the constellations seasonal?
  3. In the geocentric model of the solar system developed by Ptolemy, the planets move
  4. According to modern atomic theory, light emitted by atoms originates from
  5. One difference between violet light and red light is that
  1. a Yes, On a summer night many of the constellation you can see are different from the constellations you can see on a winter night. But there are some constellations you can see all year long.
  2. b violet light has a shorter wavelength than red light.
  3. c in circular epicycles while the centers of the epicycles move in circular orbits around the Earth.
  4. d transitions of electrons between electron levels of the same atom.
  5. e to compensate for image distortion caused by the Earth's atmosphere.

5 Multiple choice questions

  1. collect more light from faint objects.
  2. shows absorption features where light has been absorbed by the atoms of the cool gas.
  3. at all wavelengths, with a peak at one particular wavelength (color).
  4. proved mathematically that light could b described by oscillating electric and magnetic fields.
  5. The air molecules scatter blue light better than red light, so more blue light reaches our eyes.

5 True/False questions

  1. The charged-coupled device, now used extensively for astronomical imaging, works on what principle?Light generates electrical charge on a computer-readable multielement array of detectors.

          

  2. Kepler's first law states that a planet moves around the Sun in a(n)elliptical orbit, with the Sun at one focus.

          

  3. At what point in a planetary orbit is that planet's speed the slowest?at aphelion.

          

  4. Why were Newton's three laws so important to astronomy?Yes, On a summer night many of the constellation you can see are different from the constellations you can see on a winter night. But there are some constellations you can see all year long.

          

  5. Which of the following is a critical component of the scientific method?testing of prediction from a scientific theory or theoretical model.