Back to quiz

6. The gradient of the line plotted on such a graph as stated in question 5 is Hubble's constant (Ho), 1 / Ho gives...?

  • Equal to the age of the universe 1.36 x 10^-10 years
  • Equal to the age of the universe 1.36 x 10^-14 years
  • Equal to the rate of expansion of the universe 1.36 x 10^-14 Mega parsecs
  • Equal to the rate of expansion of the universe 1.36 x 10^-10 Mega parsecs

7. Space and time expanded into the void of nothing after the big bang.

  • False
  • True

8. The main assumption made in the assigning of this astronomical constant to 1/Ho is that...?

  • The velocity of the galaxies is constant
  • The laws of physics still applied when the universe was extremely dense
  • The passing of time has passed unaffected by relativity and independent of the universe
  • The relative separation of all galaxies is similar to the separation distances observed on earth for local galaxies

9. When the universe was at a temperature of 10^32K...?

  • Only quarks existed
  • Only fundamental particles and photons existed in a very small space
  • Protons and small atoms such as helium and hydrogen began to form
  • Galaxies began to form

10. 300,000 years after the birth of the universe at a temperature of 4000K...?

  • Only quarks existed
  • Protons and small atoms such as helium and hydrogen began to form
  • Only fundamental particles and photons existed in a very small space
  • Galaxies began to form

11. When the universe was 10^9 years...?

  • Galaxies began to form
  • Only quarks existed
  • Only fundamental particles and photons existed in a very small space
  • Protons and small atoms such as helium and hydrogen began to form

12. Galaxies formed because of...?

  • Irregularities in the creation of matter and anti-matter
  • Irregularities in the creation of dark matter
  • Irregularities in the distribution of matter
  • Irregularities in the distribution of dark matter

13. The reason for the observed cosmological red-shift of cosmic background radiation is because of...?

  • The movement of the earth away from the center of the universe, causing the wavelengths of light to appear shorter
  • The expansion of space causing the wavelengths of light to become shorter
  • The expansion of space causing the wavelengths of light to become longer
  • The movement of the earth away from the center of the universe, causing the wavelengths of light of light to appear longer

14. The determining factor in the fate of the universe is...?

  • The temperature of the universe
  • The differences in relative speeds of recession of galaxies
  • The density of the universe
  • The size of the universe

15. The universe will eventually return to an infinitely small dense state in a 'big crunch' in a closed universe if...?

  • ρ(critical value) > ρ(universe)
  • ρ(critical value) < ρ(universe)
  • ρ(critical value) = ρ(universe)
  • ρ(critical value) ≠ ρ(universe)

16. The universe will expand infinitely causing a 'big freeze' in a open universe if...?

  • ρ(critical value) ≠ ρ(universe)
  • ρ(critical value) = ρ(universe)
  • ρ(critical value) > ρ(universe)
  • ρ(critical value) < ρ(universe)

17. The universe will reach a stable state and size causing a flat universe if...?

  • ρ(critical value) ≠ ρ(universe)
  • ρ(critical value) < ρ(universe)
  • ρ(critical value) = ρ(universe)
  • ρ(critical value) > ρ(universe)

18. The total observable mass in the universe accounts for an estimated...?

  • 24% of the mass of the universe
  • 96% of the mass of the universe
  • 4% of the mass of the universe
  • 16% of the mass of the universe

19. The missing mass is accounted for by Weakly Interacting Matter ParticleS (WIMPS) and Massive Astronomical Compact Halo ObjectS (MACHOS)

  • True
  • False

20. The effect of the increasing rate of separation of the galaxies is accounted for by...?

  • Dark energy
  • Dark matter
  • The Higgs Boson
  • Anti matter