COMD 5070 COMPREHENSIVE TEST
SCRIPT 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ What occurs when two waves are 180 degrees out of phase?
Answer: They cancel each other out, resulting in silence.
◉ Define constructive interference. Answer: It occurs when waves in
the same phase add together, resulting in a sound larger than either
input sound.
◉ Define destructive interference. Answer: It occurs when two
identical sine waves are 180 degrees out of phase, canceling each
other out.
◉ What is a harmonic sound? Answer: A sound where sine wave
frequencies are related simply, with harmonics being integer
multiples of the fundamental frequency.
◉ What is the fundamental frequency? Answer: The lowest
frequency in a series that is combined with harmonics.
,◉ What characterizes a periodic sound? Answer: It is a completely
regular repeating sound resulting from harmonic combinations.
◉ What is nearly periodic sound? Answer: A sound that has a
fundamental frequency and harmonics, but also contains some noise
due to biological irregularities.
◉ What defines aperiodic sounds? Answer: Sounds that have no
periodicity, meaning they do not repeat in any way and are
perceived as noise.
◉ What is wave reflection? Answer: It is when an incident wave
from a sound source bounces off hard surfaces, creating an echo.
◉ How does in-phase reflection affect amplitude? Answer: It boosts
amplitude.
◉ How does out-of-phase reflection affect amplitude? Answer: It
reduces amplitude.
◉ What happens when sound travels through different mediums?
Answer: Some sound is transmitted while some is reflected at the
boundary.
, ◉ What is natural resonance? Answer: The frequency at which a
structure vibrates best.
◉ Give an example of natural resonance. Answer: Pushing a child on
a swing at the right moment for maximum effect.
◉ What is the relationship between amplitude and loudness?
Answer: Amplitude is perceived as loudness.
◉ What is the relationship between frequency and pitch? Answer:
Frequency is perceived as pitch.
◉ What is the impact of phase on sound waves? Answer: Phase itself
has no perceptual quality but affects how sounds combine.
◉ What is the result of adding waves that are in the same phase?
Answer: They constructively interfere, resulting in a larger sound.
◉ What is the result of adding waves that are out of phase? Answer:
They destructively interfere, potentially leading to silence.
◉ What defines a sound as noise? Answer: It consists of numerous
sine wave frequencies present at similar amplitude levels without
periodicity.
SCRIPT 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ What occurs when two waves are 180 degrees out of phase?
Answer: They cancel each other out, resulting in silence.
◉ Define constructive interference. Answer: It occurs when waves in
the same phase add together, resulting in a sound larger than either
input sound.
◉ Define destructive interference. Answer: It occurs when two
identical sine waves are 180 degrees out of phase, canceling each
other out.
◉ What is a harmonic sound? Answer: A sound where sine wave
frequencies are related simply, with harmonics being integer
multiples of the fundamental frequency.
◉ What is the fundamental frequency? Answer: The lowest
frequency in a series that is combined with harmonics.
,◉ What characterizes a periodic sound? Answer: It is a completely
regular repeating sound resulting from harmonic combinations.
◉ What is nearly periodic sound? Answer: A sound that has a
fundamental frequency and harmonics, but also contains some noise
due to biological irregularities.
◉ What defines aperiodic sounds? Answer: Sounds that have no
periodicity, meaning they do not repeat in any way and are
perceived as noise.
◉ What is wave reflection? Answer: It is when an incident wave
from a sound source bounces off hard surfaces, creating an echo.
◉ How does in-phase reflection affect amplitude? Answer: It boosts
amplitude.
◉ How does out-of-phase reflection affect amplitude? Answer: It
reduces amplitude.
◉ What happens when sound travels through different mediums?
Answer: Some sound is transmitted while some is reflected at the
boundary.
, ◉ What is natural resonance? Answer: The frequency at which a
structure vibrates best.
◉ Give an example of natural resonance. Answer: Pushing a child on
a swing at the right moment for maximum effect.
◉ What is the relationship between amplitude and loudness?
Answer: Amplitude is perceived as loudness.
◉ What is the relationship between frequency and pitch? Answer:
Frequency is perceived as pitch.
◉ What is the impact of phase on sound waves? Answer: Phase itself
has no perceptual quality but affects how sounds combine.
◉ What is the result of adding waves that are in the same phase?
Answer: They constructively interfere, resulting in a larger sound.
◉ What is the result of adding waves that are out of phase? Answer:
They destructively interfere, potentially leading to silence.
◉ What defines a sound as noise? Answer: It consists of numerous
sine wave frequencies present at similar amplitude levels without
periodicity.
