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ASTR LAB FINAL EXAM GUIDE
ACTUAL QUESTIONS 2026 WITH
VERIFIED ANSWERS.
Maximum height of a wave from the undisturbed state, also
known as a measure of energy for a wave. - correct answer-
Amplitude
Number of wave crests passing any given point in a unit of
time. - correct answer-Frequency
Waves combine create to trough and effect results in a wave
with a smaller amplitude, possibly canceling each other out
completely. - correct answer-Destructive Interference
Name and describe the two types of interference that occur
when waves collide and the results. - correct answer-
Constructive Interference = when two waves line up crest to
crest and trough to trough and results in a wave larger than the
original waves.
Deconstructive Interference = when two waves collide crest to
trough and the resulting wave has less amplitude or totally
cancels out.
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True or False: Temperature and luminosity are all found on the
x-axis of the H-R diagram. - correct answer-FALSE
True or False: Red giants are found in the upper right corner of
the H-R diagram. - correct answer-TRUE
True or False: A star with a magnitude of -4 with appear brighter
than a star with a magnitude of 4. - correct answer-TRUE
True or False: Spectral classification can be found on the x-axis
of a H-R diagram. - correct answer-TRUE
True or False: Blue super-giants are found in the upper right
corner of the H-R diagram. - correct answer-FALSE
True or False: The brightest stars visible in the night sky are all
found in the upper part of the H-R diagram. - correct answer-
TRUE
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Unit used to measure parallax. - correct answer-Parsec
A system which consists of two stars in orbit around their
common center of mass. - correct answer-Binary Star System
Annual movement of a star across the sky, as seen from Earth.
- correct answer-Proper Motion
How bright a star would appear if it were placed at a distance of
10 parsecs form Earth. - correct answer-Absolute Brightness
Brightness a star appears to have, as measured by an observer
on Earth. - correct answer-Apparent Brightness
Band of stars spanning the H-R diagram. - correct answer-Main
Sequence
ASTR LAB FINAL EXAM GUIDE
ACTUAL QUESTIONS 2026 WITH
VERIFIED ANSWERS.
Maximum height of a wave from the undisturbed state, also
known as a measure of energy for a wave. - correct answer-
Amplitude
Number of wave crests passing any given point in a unit of
time. - correct answer-Frequency
Waves combine create to trough and effect results in a wave
with a smaller amplitude, possibly canceling each other out
completely. - correct answer-Destructive Interference
Name and describe the two types of interference that occur
when waves collide and the results. - correct answer-
Constructive Interference = when two waves line up crest to
crest and trough to trough and results in a wave larger than the
original waves.
Deconstructive Interference = when two waves collide crest to
trough and the resulting wave has less amplitude or totally
cancels out.
, Page | 2
True or False: Temperature and luminosity are all found on the
x-axis of the H-R diagram. - correct answer-FALSE
True or False: Red giants are found in the upper right corner of
the H-R diagram. - correct answer-TRUE
True or False: A star with a magnitude of -4 with appear brighter
than a star with a magnitude of 4. - correct answer-TRUE
True or False: Spectral classification can be found on the x-axis
of a H-R diagram. - correct answer-TRUE
True or False: Blue super-giants are found in the upper right
corner of the H-R diagram. - correct answer-FALSE
True or False: The brightest stars visible in the night sky are all
found in the upper part of the H-R diagram. - correct answer-
TRUE
, Page | 3
Unit used to measure parallax. - correct answer-Parsec
A system which consists of two stars in orbit around their
common center of mass. - correct answer-Binary Star System
Annual movement of a star across the sky, as seen from Earth.
- correct answer-Proper Motion
How bright a star would appear if it were placed at a distance of
10 parsecs form Earth. - correct answer-Absolute Brightness
Brightness a star appears to have, as measured by an observer
on Earth. - correct answer-Apparent Brightness
Band of stars spanning the H-R diagram. - correct answer-Main
Sequence
