Spring Final Exam Review '23

An interstellar accumulation of dust and gases is referred to as a ____________.

• Neutron star

• Red giant

• Nebula

• Galaxy

According to the Big Bang theory, a cataclysmic explosion created the matter in the universe about ____________ years ago.

• 14 billion

• 2 billion

• 4.6 billion

• 12 million

The apparent change in wavelength of radiation caused by the relative motions of the source and the observer is referred to as ____________.

• the Doppler effect

• relativity

• the acceleration factor

• Newton's law of radiation

The red shifts exhibited by far-away galaxies can be explained by ____________.

• The expansion of the Milky Way galaxy

• Kepler's first law

• Earth's orbital velocity

• an expanding universe

The color of a star is most closely related to its ____________.

• mass

• temperature

• radius

• composition

The final stage in the evolution of the most massive stars is a(n) __________ .

• black hole

• black dwarf

• main-sequence star

• red giant

The final stage for a star which is as massive as the Sun.

• black hole

• black dwarf

• main-sequence star

• red giant

Which type of galaxy is characteristic of a large bulge and no disk?

• elliptical

• spiral

• barred spiral

• irregular

Which type of galaxy is characteristic of possessing a bulge and a disk comprised of arms radiating from the central bulge?

• elliptical

• spiral

• barrel spiral

• irregular

The “leftovers” of the Big Bang that was detectable with the Horn Antenna is referred to as...

• red shift

• cosmic microwave background radiation

• the Doppler effect

• expansive radiation