ASTRO 101 Exam Questions with Correct Answers
Question 1:
area of space where the pull of gravity becomes so strong that the curvature of spacetime
prevents light from escaping
Answer:
black holeone of 2 possible products of death of high mass stars
Question 2:
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
Question 3:
dark star
Answer:
star with escape velocity faster than speed of light, would emit light, but light would be unable
to escape, cannot exist
Question 4:
transverse waves
Answer:
waves that oscillate (repeating a single cycle / repeating motion) at right angles to the direction
of travels
Question 5:
incandescence
Answer:
Light is produced using heat energy
, Question 6:
Luminescence
Answer:
Production of light through atomic transitions
Question 7:
area of space where the pull of gravity becomes so strong that the curvature of spacetime
prevents light from escaping
Answer:
black hole
Question 8:
one of 2 possible products of death of high mass stars 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
Answer:
Black body radiation
Question 9:
doppler effect
Answer:
stars moving towards us have decreased wavelength and increased frequency, stars moving
away have increased wavelength and decreased frequency
Question 10:
blueshift
Answer:
something moving towards you (shorter wavelength from doppler effect)
Question 11:
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.
Question 1:
area of space where the pull of gravity becomes so strong that the curvature of spacetime
prevents light from escaping
Answer:
black holeone of 2 possible products of death of high mass stars
Question 2:
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
Question 3:
dark star
Answer:
star with escape velocity faster than speed of light, would emit light, but light would be unable
to escape, cannot exist
Question 4:
transverse waves
Answer:
waves that oscillate (repeating a single cycle / repeating motion) at right angles to the direction
of travels
Question 5:
incandescence
Answer:
Light is produced using heat energy
, Question 6:
Luminescence
Answer:
Production of light through atomic transitions
Question 7:
area of space where the pull of gravity becomes so strong that the curvature of spacetime
prevents light from escaping
Answer:
black hole
Question 8:
one of 2 possible products of death of high mass stars 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
Answer:
Black body radiation
Question 9:
doppler effect
Answer:
stars moving towards us have decreased wavelength and increased frequency, stars moving
away have increased wavelength and decreased frequency
Question 10:
blueshift
Answer:
something moving towards you (shorter wavelength from doppler effect)
Question 11:
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.
