Test Review: Cosmology and Interstellar Travel

At the end of the first fifteen minutes, the mass ratio of H/He created was about:

• 50/50

• 27/73

• 1/4

• 90/10

• 75/25

Tags

NGSS.HS-ESS1-2

At this time, the universe is:

• matter dominated.

• radiation dominated.

• quark dominated.

• dark energy dominated.

• lepton dominated.

Recent work with type I supernovae at great distances suggests the universe may in fact be accelerating its expansion, a discovery attributed to a newly found:

• repulsive charge on dark matter.

• dark energy.

• mass determined for the neutrinos.

• polarization and a universal spinning magnetic field.

• magnetic field associated with antimatter.

The Big Bang formed:

• all elements up to iron.

• only hydrogen.

• only helium.

• all elements found in nature now.

• hydrogen and helium, but nothing else.

Tags

NGSS.HS-ESS1-2

What is the Big Bang?

• An enormous explosion that organized all matter in the universe.

• The creation of the primeval fireball.

• The event that started the expansion of the universe.

• The creation of matter and the universe.

• An explosion that spewed matter all over the universe.

Tags

NGSS.HS-ESS1-2

Stars orbiting in the outer portions of their galaxy with the same velocity as those in the inner portions is direct evidence of-

• dark matter

• the Big Rip

• the Big Bang

• dark energy

• the Big Chill

Redshift surveys give us:

• the total mass of the universe.

• a more accurate census of the Local Group.

• a 3-D layout of galaxies in space.

• a better value of the speed of light.

• an idea of how turbulent the intergalactic gas is.

The presently accepted value of the Hubble constant gives an age of:

• 14 billion years.

• 22 billion years.

• 4.5 billion years.

• 8-9 billion years.

• 18 billion years.

Tags

NGSS.HS-ESS1-2

In which of the following models will the universe continue expanding?

• Steady State Universe

• Closed Universe

• Ripped Universe

• Open Universe

• Critical Density Universe

The redshift of the galaxies is correctly interpreted as:

• the differences in temperatures and star formation in old and young galaxies.

• space itself is expanding with time, so the photons are stretched while they travel through space.

• a Doppler shift due to the random motions of galaxies in space.

• placing our Galaxy near the center of the Local Group.

• an aging of light as gravity weakens with time.

Tags

NGSS.HS-ESS1-2