A) A fully formed galaxy B) A flat disc C) An extremely hot and dense point D) An empty void
A) Quantum theory B) The Big Bang theory C) Steady State theory D) String theory
A) Georges Lemaître B) Isaac Newton C) Stephen Hawking D) Albert Einstein
A) Archaeological findings B) Fossil records C) Volcanic eruptions D) Cosmic microwave background radiation
A) Attraction B) Stagnation C) Inflation D) Contraction
A) WIMP (Weakly Interacting Massive Particle) B) Neutrino C) Photon D) Quark
A) Singularity B) Decay C) Event Horizon D) Nebula
A) Mars Rover B) Hubble Space Telescope C) Voyager D) COBE (Cosmic Background Explorer)
A) Reversing B) Stagnating C) Expanding D) Collapsing
A) 20 billion years ago. B) 13.787±0.02 billion years ago. C) 10 billion years ago. D) 15 billion years ago.
A) Albert Einstein in the early 1900s. B) Edwin Hubble in 1929. C) Georges Lemaître in 1931. D) Physicist Alexander Friedmann in 1922.
A) Galaxies remain stationary relative to each other. B) The universe is contracting over time. C) Galaxies are moving away from Earth at a rate that accelerates proportionally with distance. D) The universe has always been static.
A) The creation of dark matter particles. B) The accelerating expansion of the universe. C) The slowing down of cosmic expansion. D) The formation of black holes.
A) The expansion of the universe is accelerating. B) The universe is contracting. C) The universe has always been static. D) Galaxies remain stationary relative to each other.
A) The steady-state model. B) The inflationary model. C) The Big Bang model. D) The cyclic model.
A) General relativity B) The universality of physical laws C) The cosmological principle D) Perfect fluid assumption
A) Perfect fluid model B) General relativity C) Fine-structure constant D) The cosmological principle
A) 10% B) 10−3 C) 10−7 D) 10−5
A) About 10% inhomogeneity B) 50% inhomogeneity C) 100% homogeneity D) 1% inhomogeneity
A) It is non-uniform B) It consists only of dark energy C) It can be modeled as a perfect fluid D) It has high viscosity
A) Indirect evidence B) Particle collision experiments C) Electromagnetic radiation D) Direct observation
A) Fred Hoyle B) Ralph Alpher C) Robert Herman D) George Gamow
A) 3.000 K B) 2.7255 K C) 372±14 kyr D) 2.726 K
A) They are based on incorrect assumptions. B) They do not account for dark energy. C) They only apply to black holes. D) Because the temperature approaches the Planck scale, requiring quantum gravity treatment.
A) Uranium-238, Thorium-232, Lead-206 B) Iron-56, Silicon-28, Magnesium-24 C) Carbon-12, Nitrogen-14, Oxygen-16 D) Helium-4, Helium-3, Deuterium, Lithium-7
A) Baryonic matter B) Dark matter C) Dark energy D) Luminous matter
A) Big Bang nucleosynthesis (BBN) B) Recombination C) Mass annihilation D) Symmetry-breaking phase transitions
A) 70.4+1.3−1.4 km/s/Mpc B) 50 km/s/Mpc C) 100 km/s/Mpc D) 30 km/s/Mpc
A) Deuterium B) Helium-3 C) Lithium-7 D) Helium-4
A) Gravitational lensing frequency B) Cosmic microwave background radiation C) Baryon acoustic oscillations D) Redshift–magnitude relation for type Ia supernovae
A) 372±14 kyr B) 2.726 K C) Approximately 2.7255 K D) 3.000 K
A) Antimatter particles B) Dark energy C) Photons D) Baryonic matter
A) Black hole mergers B) Dark matter particles C) Primordial gravitational waves D) Cosmic microwave background radiation
A) Georges Lemaître B) Alexander Friedmann C) Vesto Slipher D) Edwin Hubble
A) Observing light emissions B) Measuring cosmic microwave background radiation C) Laboratory experiments D) Analyzing galaxy cluster velocities
A) 50% B) 60% C) 85% D) 73%
A) Baryon asymmetry B) Dark energy C) Cosmic microwave background radiation D) Horizon problem
A) 1931 B) 1953 C) March 1949 D) 1927
A) 10% B) Up to 90% C) 25% D) 50%
A) Georges Lemaître B) Vesto Slipher C) Edwin Hubble D) Alexander Friedmann
A) a² + b² = c² B) E = mc² C) F = ma D) v = H₀D
A) They help study galaxy clusters B) They measure visible matter density C) They detect dark matter particles directly D) They modify gravitational laws
A) Quantum singularity B) Ylem C) Cosmic egg D) Primeval atom
A) Arthur Eddington B) Georges Lemaître C) Edwin Hubble D) Fred Hoyle
A) Astronomer Fred Hoyle B) Edwin Hubble C) Albert Einstein D) Georges Lemaître
A) The speed at which light travels B) Light emitted today may never reach very distant objects C) The presence of dark matter D) The finite age of the universe
A) Gravitational phase transitions B) Thermal phase transitions C) Symmetry-breaking phase transitions D) Quantum phase transitions
A) Less than 1% B) 23% C) 73% D) 4.6%
A) The exact end state B) Finite durations C) Beyond the observable universe D) Infinite timescales
A) 10–15% B) 40–50% C) 20–30% D) 5–10%
A) 1989 B) 1978 C) 2003 D) 1964
A) 68% B) 100% C) 27% D) 5% |