ASTRO 101 FINAL EXAM LATEST 2026 WITH
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS ALREADY GRADED A PLUS
GUARANTEED PASS
◉event horizon . Answer: -invisible boundary of the gravitational pull of
a black hole
-"The point of no return"
-once crossed nothing can escape and will be
sucked into the black hole
◉dark star . Answer: star with escape velocity faster than speed of light,
would emit light, but light would be unable to escape, cannot exist
◉transverse waves . Answer: waves that oscillate (repeating a single
cycle / repeating motion) at right angles to the direction of travels
◉incandescence . Answer: Light is produced using heat energy
◉Luminescence . Answer: Production of light through atomic transitions
, ◉Black body radiation . Answer: Another name for incandescence,
explains how photons are created by the intense vibration of particles at
high temperatures , applies to all particles above absolute zero
◉doppler effect . Answer: stars moving towards us have decreased
wavelength and increased frequency, stars moving away have increased
wavelength and decreased frequency
◉blueshift . Answer: something moving towards you (shorter
wavelength from doppler effect)
◉redshift . Answer: When light from stars or galaxies that are moving
away from us is shifted to longer wavelengths (more red). It is an
example of the Doppler Effect.
◉doppler shift . Answer: change in wavelength=lambda x v/c
v=speed of star
c=speed of light
◉wavelength observed . Answer: lambda + change in lambda
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS ALREADY GRADED A PLUS
GUARANTEED PASS
◉event horizon . Answer: -invisible boundary of the gravitational pull of
a black hole
-"The point of no return"
-once crossed nothing can escape and will be
sucked into the black hole
◉dark star . Answer: star with escape velocity faster than speed of light,
would emit light, but light would be unable to escape, cannot exist
◉transverse waves . Answer: waves that oscillate (repeating a single
cycle / repeating motion) at right angles to the direction of travels
◉incandescence . Answer: Light is produced using heat energy
◉Luminescence . Answer: Production of light through atomic transitions
, ◉Black body radiation . Answer: Another name for incandescence,
explains how photons are created by the intense vibration of particles at
high temperatures , applies to all particles above absolute zero
◉doppler effect . Answer: stars moving towards us have decreased
wavelength and increased frequency, stars moving away have increased
wavelength and decreased frequency
◉blueshift . Answer: something moving towards you (shorter
wavelength from doppler effect)
◉redshift . Answer: When light from stars or galaxies that are moving
away from us is shifted to longer wavelengths (more red). It is an
example of the Doppler Effect.
◉doppler shift . Answer: change in wavelength=lambda x v/c
v=speed of star
c=speed of light
◉wavelength observed . Answer: lambda + change in lambda
