Cosmology Quiz with professor Dave

What is the subfield of astrophysics that specifically studies the origin and development of the universe?

• Astrobiology

• Cosmology

• Stellar Astronomy

• Planetary Science

When did the universe begin according to the evidence?

• 20.8 billion years ago

• 13.8 billion years ago

• 10.8 billion years ago

• 15.8 billion years ago

Who coined the term 'The Big Bang'?

• Isaac Newton

• Stephen Hawking

• Albert Einstein

• Fred Hoyle

What is the temperature of the universe at the Planck epoch?

• 10 to the 20 Kelvin

• 10 to the 25 Kelvin

• 10 to the 28 Kelvin

• 10 to the 32 Kelvin

What is the phenomenon that can occur when extreme temperatures cool below certain transition temperatures?

• Decoupling

• Inflation

• Quantum fluctuation

• Symmetry breaking

What is the era called when the universe expanded by an incredible factor, around 26 orders of magnitude?

• Electroweak epoch

• Inflationary epoch

• Lepton epoch

• Quark epoch

What marks the first time that the universe is actually visible?

• Quark epoch

• Dark ages

• Recombination and photon decoupling

• Photon epoch

What is the era called when there were no stars to produce all the light we see in the night sky today?

• Photon epoch

• Recombination and photon decoupling

• Quark epoch

• Dark ages

What temperature did the universe cool down to during the dark ages?

• 500 Kelvin

• 300 Kelvin

• 1000 Kelvin

• 200 Kelvin

What is the force that pulled matter together into clumps during the dark ages?

• Gravity

• Weak nuclear force

• Strong nuclear force

• Electromagnetic force