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5 Written questions

5 Matching questions

  1. 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)
  2. When a solid body (or a dense gas such as a star) cools from a temperature of several thousand degrees, the color of the wavelength of maximum emission of radiation will
  3. In 1670 Isaac Newton performed a critical experiment on the nature of light when he
  4. Refraction is the
  5. The nightly motion of objects across our sky from horizon to horizon is caused by the
  1. a 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.
  2. b rotation of Earth on it axis.
  3. c move steadily toward the red end of the spectrum.
  4. d parabolic shape.
  5. e bending of light as it enters a dense but transparent material at an angle to the perpendicular to the surface of the material.

5 Multiple choice questions

  1. elliptical orbit, with the Sun at one focus.
  2. to compensate for image distortion caused by the Earth's atmosphere.
  3. Solar spectra show absorption in spectral lines that are characteristic of iron and are unique to it.
  4. the direction of an object's motion changes.
  5. visible light, UV radiation, X rays, gamma rays

5 True/False questions

  1. The chemical makeup of a star's surface is usually inferred bycelestial equator and the star, measured along a great circle passing through both celestial poles.


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


  3. 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.


  4. If a modern astronomer describes a faint star as being in the constellation Cygnus, the Swan, you know that the star iscelestial equator and the star, measured along a great circle passing through both celestial poles.


  5. Visible wavelengths of electromagnetic radiation have a range of wavelengths of400 nm to 700 nm


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