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5 Written questions

5 Matching questions

  1. At what point in a planetary orbit is that planet's speed the slowest?
  2. According to Newton's laws, a for must be acting whenever
  3. Which of the following sequences of electromagnetic radiation is correct, in order of increasing energy of the photons?
  4. When Saturn is closest to the Earth, it is at
  5. Kepler's first law states that a planet moves around the Sun in a(n)
  1. a the direction of an object's motion changes.
  2. b elliptical orbit, with the Sun at one focus.
  3. c opposition.
  4. d at aphelion.
  5. e visible light, UV radiation, X rays, gamma rays

5 Multiple choice questions

  1. at all wavelengths, with a peak at one particular wavelength (color).
  2. in circular epicycles while the centers of the epicycles move in circular orbits around the Earth.
  3. shows absorption features where light has been absorbed by the atoms of the cool gas.
  4. bending of light as it enters a dense but transparent material at an angle to the perpendicular to the surface of the material.
  5. they agree with what we find in experiments and observations.

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?point where the Sun crosses the celestial equator moving northward in its path across the sky.


  2. The Copernican system for planetary motion isare 88 in number and cover the entire sky.


  3. The time period between two successive passages of a planet through the position of opposition isits synodic period.


  4. Visible wavelengths of electromagnetic radiation have a range of wavelengths oftemporary reversal of the planet's normal west-to-east motion past the background stars as seen from the Earth.


  5. From a location in the northern hemisphere, the pole star always appears at an angle above the northern horizon equalcelestial equator and the star, measured along a great circle passing through both celestial poles.


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