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5 Written questions

5 Matching questions

  1. The position of an element in the periodic table is directly related to the
  2. Why were Newton's three laws so important to astronomy?
  3. The constellations
  4. If a modern astronomer describes a faint star as being in the constellation Cygnus, the Swan, you know that the star is
  5. The ecliptic can be defined as the
  1. a somewhere within a particular region of sky having definite boundaries.
  2. b number of protons in the atomic nucleus and hence its positive charge.
  3. c path traced out by the Sun in our sky over one year against the background stars.
  4. d Newton's laws showed that planets can move around the Sun by themselves forever, without coming to rest.
  5. e are 88 in number and cover the entire sky.

5 Multiple choice questions

  1. spectroscopy of the light emitted by the star.
  2. to obtain much better angular resolution or sharpness in the images.
  3. Light generates electrical charge on a computer-readable multielement array of detectors.
  4. energy emitted by each square meter of the star's surface each second.
  5. absorbs all radiation that falls on it.

5 True/False questions

  1. In the system of celestial coordinates that matches latitude and longitude on the Earth, which in the coordinate that is equivalent to longitude?Right ascension


  2. Why was adaptive optics developed?The air molecules scatter blue light better than red light, so more blue light reaches our eyes.


  3. What is the half-life of a sample of matter containing radioactive element?time needed for half the radioactive atoms in the sample to decay.


  4. The term retrograde motion from a planet refers to thetemporary reversal of the planet's normal west-to-east motion past the background stars as seen from the Earth.


  5. Refraction is thedistance that light travels in one year.