Big Bang Theory - Level 3

What is the approximate temperature of the universe after the Big Bang? a) Absolute zero b) 2.7 Kelvin c) 10,000 Kelvin

• Absolute zero

• 2.7 Kelvin

• 10,000 Kelvin

Which galaxy is our Milky Way thought to be a part of in the context of the Big Bang theory? a) Andromeda Galaxy b) Triangulum Galaxy c) Local Group

• Andromeda Galaxy

• Triangulum Galaxy

• Local Group

Who coined the term "Big Bang" in a humorous attempt to criticize the theory? a) Albert Einstein b) Fred Hoyle c) Stephen Hawking

• Albert Einstein

• Fred Hoyle

• Stephen Hawking

What term is used to describe the rapid expansion of the universe moments after the Big Bang? a) Inflation b) Deflation c) Stagnation

• Inflation

• Deflation

• Stagnation

Who first proposed the idea of the Big Bang? a) Albert Einstein b) Edwin Hubble c) Georges Lemaître

• Albert Einstein

• Edwin Hubble

• Georges Lemaître

Which spacecraft provided crucial data supporting the Big Bang theory by mapping the Cosmic Microwave Background? a) Hubble Space Telescope b) Planck Satellite c) Kepler Space Telescope

• Hubble Space Telescope

• Planck Satellite

• Kepler Space Telescope

What is the estimated size of the observable universe today? a) 93 million light-years b) 13.8 billion light-years c) 1 trillion light-years

• 93 billion light-years

• 13.8 billion light-years

• 1 trillion light-years

In the early stages of the universe, what type of particles dominated the cosmic soup? a) Quarks and leptons b) Protons and electrons c) Neutrinos and photons

• Quarks and leptons

• Protons and electrons

• Neutrinos and photons

What is the concept of the "Big Crunch" in the context of the universe's fate? a) Continued expansion b) Contraction and collapse c) Stability and equilibrium

• Continued expansion

• Contraction and collapse

• Stability and equilibrium

What term describes the point in time when the universe transitioned from opaque to transparent as photons decoupled from matter? a) Photon Liberation b) Cosmic Dawn c) Recombination Epoch

• Photon Liberation

• Cosmic Dawn

• Recombination Epoch