Origin of the Universe

What is the prevailing scientific theory explaining the origin of the universe?

• Geocentrism

• Heliocentrism

• Cosmic inflation theory (Big Bang Theory)

• Steady-State theory

Approximately how long ago is the Big Bang theory believed to have occurred?

• 13.8 billion years ago
• 4.5 billion years ago
• 1 million years ago
• 5000 years ago

What is the term used to describe the incredibly small, dense point from which the universe is believed to have originated?

• Black Hole
• Nebula
• Supernova
• Singularity

Which of the following pieces of evidence supports the Big Bang theory?

• The existence of dinosaurs
• The presence of water on Mars
• The rotation of the Earth
• The redshift of distant galaxies

What is cosmic microwave background radiation?

• It is a type of radiation that is only found in black holes
• It is the radiation left over from the Big Bang
• It is a type of radiation emitted by stars
• It is a type of radiation that is only found in galaxies

What role did inflation play in the early universe?

• Inflation caused the universe to expand exponentially fast
• Inflation made the universe contract
• Inflation had no role in the early universe
• Inflation caused the universe to remain static

 According to the Big Bang theory, what was the initial state of the universe before the explosion?

• A giant black hole
• An infinitely small, hot and dense point
• A vast empty space
• A fully formed galaxy

What is nucleosynthesis in the context of the origin of the universe?

• The process of creating new stars
• The formation of galaxies
• The creation of new planets
• The process of creating new atomic nuclei from pre-existing nucleons

What is the current fate of the universe, as predicted by observations of cosmic expansion?

• The universe will eventually collapse
• The universe will stop expanding and remain static
• The universe will continue to expand at an accelerating rate
• The universe will eventually stop expanding and start contracting

Which of the following is NOT a result in the observation of the Cepheid star by Edwin Hubble?

• The universe is expanding
• The existence of other galaxies
• The distance between the Milky Way and Andromeda
• The color of the Cepheid star