Other questions in this quiz

2. Who was right in the Curtis-Shapley debate?

  • Both: Shapley was right about the Sun being away from the centre of our galaxy, but Curtis was right about the multiple galaxies and that the nebulae were far away from the Milky Way
  • Shapley: He believed there was one galaxy, 100,000 pc across, with the Sun away from the centre, and that nebulae were part of the Milky Way
  • Curtis: He thought there were many galaxies, 10,000 pc across each, with the Sun at the centre and that nebulae were separate from the Milky Way
  • Neither

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

5. 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
View more questions

Comments

zo26blue

Report

100%, excellent resource, thank you.

Similar Physics resources:

See all Physics resources »See all Earth in space resources »