Mock exam

What is the Big Bang theory?

• A theory that explains the origins of the universe, including the sudden and rapid expansion of space and time from a singular point.

• A theory that explains the origins of life on Earth, including the evolution of species over time.

• A theory that explains the origins of the Milky Way galaxy, including the formation of the solar system.

• A theory that explains the origins of dark matter and dark energy, which make up a significant portion of the universe.

What conclusion was made by the astronomers based on the observed red shifts in the spectral lines of distant galaxies?

• Earth is in the center of the universe.

• The universe is expanding.

• The universe is in a steady state.

• The universe is contracting.

Which of the following accurately describes the chronological order of events during the Big Bang leading up to Big Bang nucleosynthesis?

• The universe rapidly expands, cosmic inflation occurs, and light elements are formed.

• Cosmic inflation occurs, the universe rapidly expands, and light elements are formed.

• The universe rapidly expands, light elements are formed, and cosmic inflation occurs.

• Light elements are formed, the universe rapidly expands, and cosmic inflation occurs.

How did the first elements form after the Big Bang?

• Through the combination of quarks and gluons

• Through radioactive decay of heavier elements

• Through nuclear fusion in stars

• Through volcanic eruptions on Earth

How were elements heavier than helium formed after the Big Bang?

• Through the combination of quarks and gluons

• Through the collision of atoms in interstellar space

• Through nuclear fusion in stars

• Through the decay of heavier elements

What is nucleosynthesis?

• The process of creating new stars

• The process of creating new planets

• The process of creating new atomic nuclei

• The process of creating new galaxies

Which process explains the formation of the heaviest elements you can find in your periodic table?

• Big Bang nucleosynthesis

• Nuclear fission

• Supernova nucleosynthesis

• Stellar nucleosynthesis

Name the three types of nucleosynthesis and explain how they occurred and what elements they produced.

• Big Bang nucleosynthesis, stellar nucleosynthesis, supernova nucleosynthesis

• Chemical nucleosynthesis, physical nucleosynthesis, biological nucleosynthesis

• Atomic nucleosynthesis, molecular nucleosynthesis, cellular nucleosynthesis

• Cosmic nucleosynthesis, planetary nucleosynthesis, galactic nucleosynthesis

According to John Dalton's atomic theory, the fundamental building blocks of matter are minuscule and indivisible known as _________________?

• atoms

• molecules

• particles

• elements

Who was the Greek philosopher who first postulated the idea of atom?

• Aristotle

• Plato

• Democritus

• Socrates