P7 Quiz: Mapping the universe

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

1. The parallax angle of a star is...

  • half the angle that a star moves in nine months, against a background of very distant stars
  • ...quarter the angle that a star moves in six months, against a background of very distant stars
  • ...half the angle that a star moves in six months, against a background of very distant stars
  • half the angle that a star moves in three months, against a background of very distant stars
1 of 7

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
  • Neither
  • 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

3. 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)

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. Cepheid variable stars are stars that...

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

Comments

zo26blue

Report

100%, excellent resource, thank you.

Similar Physics resources:

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