Question types

Start with

Question limit

of 50 available terms

Advertisement Upgrade to remove ads
Print test

5 Written questions

5 Matching questions

  1. The declination of a star in the sky is defined as the angle between the
  2. The charged-coupled device, now used extensively for astronomical imaging, works on what principle?
  3. 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
  4. the energy flux, F, from a star is the amount of
  5. The main reason for building large optical telescopes on the Earth's surface is to
  1. a move steadily toward the red end of the spectrum.
  2. b collect more light from faint objects.
  3. c Light generates electrical charge on a computer-readable multielement array of detectors.
  4. d celestial equator and the star, measured along a great circle passing through both celestial poles.
  5. e energy emitted by each square meter of the star's surface each second.

5 Multiple choice questions

  1. at aphelion.
  2. bending of light as it enters a dense but transparent material at an angle to the perpendicular to the surface of the material.
  3. Newton's laws showed that planets can move around the Sun by themselves forever, without coming to rest.
  4. opposition.
  5. Right ascension

5 True/False questions

  1. The zero point of the celestial coordinate known as right ascension is defined to be thepoint where the Sun crosses the celestial equator moving northward in its path across the sky.


  2. The chemical makeup of a star's surface is usually inferred byspectroscopy of the light emitted by the star.


  3. The position of an element in the periodic table is directly related to thenumber of protons in the atomic nucleus and hence its positive charge.


  4. Visible wavelengths of electromagnetic radiation have a range of wavelengths ofvisible light, UV radiation, X rays, gamma rays


  5. What is the main reason for using several radio telescopes together as an interferometer?temporary reversal of the planet's normal west-to-east motion past the background stars as seen from the Earth.