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5 Written questions

5 Matching questions

  1. In 1670 Isaac Newton performed a critical experiment on the nature of light when he
  2. The best shape for the cross-section of a simple astronomical mirror in order to produce the sharpest images of very distant objects at its prime focus is a(n)
  3. In the 1860s, James Clerk Maxwell carried out important investigations on the nature of light when he
  4. The charged-coupled device, now used extensively for astronomical imaging, works on what principle?
  5. Refraction is the
  1. a parabolic shape.
  2. b Light generates electrical charge on a computer-readable multielement array of detectors.
  3. c bending of light as it enters a dense but transparent material at an angle to the perpendicular to the surface of the material.
  4. d demonstrated that white light was made up of colors that could be split by a prism and that these colors were not produced by the glass through which the light passed.
  5. e proved mathematically that light could b described by oscillating electric and magnetic fields.

5 Multiple choice questions

  1. number of protons in the atomic nucleus and hence its positive charge.
  2. temporary reversal of the planet's normal west-to-east motion past the background stars as seen from the Earth.
  3. path traced out by the Sun in our sky over one year against the background stars.
  4. time needed for half the radioactive atoms in the sample to decay.
  5. The star is moving rapidly away from Earth.

5 True/False questions

  1. The Copernican system for planetary motion isSun-centered, with the planets moving in perfect circles around the Sun.

          

  2. A perfect circle is an ellipse with an eccentricity ofzero.

          

  3. Which of the following four objects or persons in NOT accelerating?Olympic swimmer exerting considerable force to maintain a constant speed in a straight line through the water.

          

  4. Are the constellations seasonal?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. A planet at inferior conjunction is alwaysYes, 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.