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