Cosmogony/Quiz - Wikiversity

Cosmogony is a lecture and an article studying the origin or initial construction of the universe or any portion. It is a mini-lecture for a quiz-section as part of the astronomy course on the principles of radiation astronomy.

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1 Quiz
2 Hypotheses
3 See also
4 External links

Quiz

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1 True or False, Cosmogony is any scientific theory concerning the coming into existence, or origin, of the cosmos or universe, or about how what sentient beings perceive as "reality" came to be.

	TRUE
	FALSE

2 Which of the following are cosmogonical phenomenon associated with the Sun, or solar system?

	watery abyss
	aphrodite
	Hermeneutes
	cold dark matter
	Heracles
	unseen mass
	Silver age

3 True or False, Steiner’s cosmogony takes the basic form of the gnostic myth.

	TRUE
	FALSE

4 Complete the text:

Match up the type of Sun system astrogony with each of the possibilities below:

Babylonian epic story of creation - A

a primordial or first Greek god - B

the primeval chaos - C

creation of heaven and earth - D

Greek god personifying the sky - E

Cronus (Saturn) castrating his father - F

separation of the waters by a firmament

Chaos magno

Uranus

watery abyss

Ouranos

Enuma Elish

5 True or False, Democritus and Anaxagoras taught that there was a time when the Earth was without the Moon.

	TRUE
	FALSE

6 Aphrodite is linked to the Moon through her epithet

7 True or False, According to Hesiod's Theogony, Uranus was conceived by Gaia alone, but other sources cite Aether as his father.

	TRUE
	FALSE

8 Complete the text:

The moon was formed independently of the earth and later

, presumably by a

interaction.

9 True or False, Hippolytus refers to a legend that Arcadia brought forth Pelasgus, of greater antiquity than the moon.

	TRUE
	FALSE

10 The following phenomena are associated with the Golden Age?

	Jupiter
	An, the oldest and highest of the Sumero-Babylonian gods
	Saturn
	There is one God, greatest among gods and men
	Nabu or Nebo
	Hermes invented one language for one people, another for another

11 True or False, Mercury may have once been a satellite of Jupiter, or possibly of Saturn.

	TRUE
	FALSE

12 Which of the following phenomena are associated with Venus?

	separate stars, Phosphorus, the morning star, and Hesperus, the evening star
	locally available carving tools
	the ionosphere was observed to become elongated downstream, rather like a long-tailed comet, during a rare period of very low density solar outflow
	Lucifer, literally "Light-Bringer", and Vesper
	currently dormant volcanoes only on the Sun-facing side
	a breathable atmosphere

13 Yes or No, The formation of exponential disks is an outstanding problem in cosmogony.

	Yes
	No

14 Which of the following refer to an aspect of current cosmogonic models?

	fragmentation of asteroids
	accretion
	Mars
	Jupiter
	transformation by accretion
	kilometer-size objects
	hyperbolic comets
	asteroid belt
	bodies comparable in size to the Earth

15 True or False, The 9M CMD of the LMC is assembled from MACHO.

	TRUE
	FALSE

16 It is important to study the stellar populations of nearby galaxies in order to understand the processes of galaxy

17 True or False, A new cosmogony predicts that all particles in one stream have the same mineral composition.

	TRUE
	FALSE

18 Which of the following are characteristic of theoretical cosmogony?

	definitions of cosmogony
	creations of the universe
	a decay product of uranium
	metaphysical study
	cultural or religious views
	origin and fate of the physical universe

19 True or False, A universe may be dominated by neutrinos and cold dark matter.

	TRUE
	FALSE

20 Which phenomenon are associated with cold dark matter?

	unseen mass
	a bubble in space
	range of masses of galaxies
	hot neutrinos
	Einstein-de-Sitter 'flat' universe
	the cosmological density parameter Ω

21 True or False, In cosmogonic schemes involving cold dark matter, there is an equally obvious process that might inhibit galaxy formation in the incipient voids.

	TRUE
	FALSE

22 Complete the text:

Match up the entity, source, or object with the cosmogony:

popular contemporary writings - A

a source spectrum peaking sharply at photon energies of 100 eV - B

a lucky entity - C

an entity of evolution - D

most of the initial baryons - E

a cloud of 10⁵–10⁷ M_⊙ - F

natural selection

the laws of physics

one or a few SMOs

chance

a population of stars

a blackbody spectrum with temperature of 10⁶ K

23 True or False, The overdense regions having turned into dark population III objects.

	TRUE
	FALSE

24 The strong force is involved in which of the following phenomena?

	s-waves
	the sum of the spins
	neutrinos
	Pauli's exclusion principle
	deuterium
	radio waves

25 True or False, The first systematic attempt to base a theory of the origin of the solar system on electromagnetic or hydromagnetic effects was made by Alfvén in 1942.

	TRUE
	FALSE

26 Which of the following are associated with electromagnetics?

	angular momentum transfer
	solar wind
	protons
	electrons
	the baryon neutrino
	charge neutralization

27 True or False, The temperature of the cores of stars may be determined by the balance between the gravitational attraction and the gas pressure.

	TRUE
	FALSE

28 Which of the following are involved in the weak force?

	a core which emits neutrinos
	Fermi's β-decay theory
	²⁶Al
	undetectable with balloon-borne detectors
	Gamow-Teller interactions
	steady enough emission to be used as a standard for X-ray emission
	observed with delta-rays in 1731
	M. Fierz

29 True or False, The generalized weak force theory combines the Fermi and Gamow-Teller conditions into a unified theory.

	TRUE
	FALSE

30 The generalization to self-gravitating continua is outlined focused on the classification problem of singularities and metamorphoses arising in the

31 True or False, The prismoidal method provides a good approximation of the dust emission peak for cold sources.

	TRUE
	FALSE

32 Which of the following are characteristic of a binary formed via gravitational fragmentation?

	the local Jeans length
	the local speed of sound
	the mean molecular weight
	the electron neutrino
	the mean particle density
	neutrons

33 True or False, The hierarchical clustering model has the gravitational effects of dark matter drive the evolution of structure from the near-uniform recombination epoch until the present day.

	TRUE
	FALSE

34 The extent of the Hα absorption trough along the major axes of quenched spirals is what?

	more truncated than the distribution of the Hα emission line for H I deficient galaxies
	contributed to by the new stellar population
	less truncated than the distribution of the Hα emission line for H I deficient galaxies
	due to the quenching
	disks building up from the outside in

35 True or False, The hydromagnetic approach led to the discovery of two important observational regularities in the solar system.

	TRUE
	FALSE

36 Which of the following are likely phenomena associated with population III stars

	not enough of them
	individual masses must either be less than 0.1 M_⊙
	clouds
	in the range 10³–10⁶ Μ_⊙
	too much background light
	too much material
	heavy elements

37 True or False, The ‘main Kuiper belt’ is populated by dynamically ‘hot’ and ‘cold’ subcomponents.

	TRUE
	FALSE

38 If the cosmic-ray energy remains concentrated around the sources, it is irrelevant in the present context of the cold

cosmogony.

39 Which of the following are phenomena associated with cosmogonic neutrons?

	primordial nucleosynthesis
	an expansion timescale
	a baryon density
	neutron-proton ratio freezes out
	a predicted ⁴He abundance
	rather an insensitivity to matter density

40 Which of the following are related to the neutrino-dominated universe?

	non-baryonic matter
	a level of coincidence
	nuggets of ordinary baryons
	exotic matter
	quark-hadron anti-phase transition
	ordinary baryons
	m_v/m_proton
	m_v/m_proton > 100*n_b/n_γ

41 Various gaps and density minima have been observed in the Saturnian

system.

42 The charge on a planetary dust particle may change with?

43 Which of the following are involved in the various dark regions of Saturnian rings?

	one-third fall-up mechanism
	density minima
	one-third fall-down mechanism
	cosmogonic shadow effect
	a state of partial antirotation
	plasma contained in the magnetic dipole field
	an outward centrifugal force
	photo-emission charging

44 The electron and ion currents of the cosmogonic shadow effect are given by

et al., 1984.

45 Which of the following are associated with the big bang neutrinos?

	a launch location
	relic neutrinos
	of order of the photon density
	the thermal energy at which neutrinos decouple
	neutrinos dynamically dominate baryons
	a contracting universe

46 Which of the following are cold dark matter gamma rays?

	expected signal comparable to background
	annihilation radiation
	a pronounced cosmic-ray halo
	difficult to separate from a dark halo
	dwarf spheroidals
	weakly interacting massless particles

47 Which of the following are characteristics of cosmogonic X-rays?

	gravitationally unbound
	an X-ray emitting gas that is roughly a homogeneous intercluster medium
	ultra-hot hidden gas
	gas can be hidden in intergalactic space
	X-ray background
	stellar coronal X-rays