P7 Quiz: Mapping the universe

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  • Created by: Boma
  • Created on: 23-06-13 22:17

1. Speed of recession (km/s) in calculated as...

  • Hubble constant (km s-1 Mpc-1) x distance (Mpc) or Hubble constant (s-1) x distance (km)
  • Hubble constant (s-1) x distance (Mpc) or Hubble constant (km s-1 Mpc-1) x distance (km)
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Other questions in this quiz

2. Parallax is...

  • ...position or direction of an object appears to differ when viewed from different positions
  • ...position or direction of an object appears to not change when viewed from different positions

3. Cepheid variable stars are stars that...

  • ...do not have a constant luminosity
  • ...do have a constant luminosity

4. What is red-shifting?

  • The change in wavelength of light from a close star moving away from Earth.
  • The change in wavelength of light from a distant star moving away from Earth.
  • The change in wavelength of light from a distant star moving towards Earth.

5. A parsec (pc) is calculated as...

  • 1/parallax angle (arcseconds)
  • 2/parallax angle (arcseconds)
  • 0.25/parallax angle (arcseconds)

Comments

zo26blue

100%, excellent resource, thank you.

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