TQ - 1 - Presenter 1 - STEM221-222

It is an increase in the wavelength, and corresponding decrease in frequency and photon energy, of electromagnetic radiation due to the expansion of space.

• Cosmological Redshift

• Doppler Effect

• Cosmology

It states that galaxies are moving further and further apart

• Hubble's Law

• Big Bang

• Cosmological Redshift

• Law of Moving Objects

At what temperature did the universe have after the Big Bang?

• 10^32 K

• 10^34 K

• 10^27 K

About 16 billion years ago the universe occupied a space larger than the size of an atom.

• True

• False

What are the two eras that helped shape the universe?

At what epoch/s was the chemical element Helium produced?

• Electroweak Epoch

• Lepton Epoch and Nuclear Epoch

• Planck Epoch and Grand Unification Epoch