Astronomy Semester 1 Exam Review

Which of the following BEST defines the Big Bang?

• In several brief shocks, the Milky Way was placed into movement.

• Earth started to rotate around the Sun after the Big Bang.

• In one instant, space, matter, and time were created.

• The universe suddenly appeared as it is now

Which statement is true?

• The galaxies are moving toward us.

• The galaxies are moving away from us.

• The universe remains static or unchanged in motion.

• None of the above

Tags

NGSS.HS-ESS1-2

Which elements are most

abundant in the visible

universe?

• Hydrogen and Carbon

• Carbon and Helium

• Hydrogen and Oxygen

• Hydrogen and Helium

Red light has a ______ pitch, or frequency, than the blue end.

• Low

• High

• the same

• nice

Tags

NGSS.HS-PS4-1

Choose the word that BEST completes the following sentence: According to cosmologists, all the _____________________ that exists is all that there will ever be.

• Mass

• Matter

• Galaxies

• Stars

Which of the following statements BEST describes cosmic microwave background radiation?

• The wind left over from the Big Bang

• The energy left over from the big bang

• The light left over from the big bang

• The original particles of radiation that were present during the big bang

The earliest stage of a star’s life before it begins to undergo fusion is known as:

• Retrograde

• Planetesimal

• Protostar

• Solar nebula

A star creates energy through a series of steps known as:

• Electron-neutron chain reaction

• Nuclear fission

• proton-electron chain reaction

• proton-proton chain reaction

The H-R diagram is a comparison between

• A star's size and distance from the sun

• A star's static levels and its brightness

• A star's lifespan and it's size

• A star's absolute magnitude and temperature

Edwin Hubble used a telescope and observed fuzzy blobs of light off in the distance. He realized that these lights were:

• Stars

• Galaxies

• Universes

• Planets