Origin and Evolution of the Universe

Question 1

Which describes redshifts? Check all that apply.

Revolt · Accepted Answer

Observed light shifts to a longer wavelength.; They indicate receding galaxies.; The light source and observer move farther apart.

Question 2

Victor drew a diagram to show the life cycle of a low-mass star.

Revolt · Accepted Answer

white dwarf

Question 3

After the supernova in a star’s life cycle, what else is formed in addition to a nebula?

Revolt · Accepted Answer

black hole or neutron star

Question 4

Scientists discovered that stars in the universe are mostly composed of which elements?

Revolt · Accepted Answer

hydrogen and helium

Question 5

The brightness of a star as seen from Earth is referred to as brightness.

Revolt · Accepted Answer

apparent

Question 6

most likely

Revolt · Accepted Answer

2.0 solar mass

Question 7

A Hertzsprung-Russel diagram is shown.

Revolt · Accepted Answer

supergiants

Question 8

Bethany and Joquin are discussing theories about the universe. Bethany believes that since the beginning of the universe, galaxies have been moving, and will continue to move, toward Earth. Joquin argues that galaxies have been moving away from Earth.

Revolt · Accepted Answer

redshift

Question 9

According to the big bang theory, which describes the universe before the actual big bang occurred?

Revolt · Accepted Answer

single, hot, dense point smaller than an atom

Question 10

Which of these forms as part of the life cycles of both low-mass and high-mass stars as a result of a star-forming nebula collapsing and spinning?

Revolt · Accepted Answer

protostar

Origin and Evolution of the Universe Answers

More from this Course

TRY EDGENUITY HACKS