MP 100 CYCLE 1 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
sound - Answers A brain's perception and interpretation of a vibration from a physical stimulus
What is a waveform? - Answers Graphic representation of sound pressure level or voltage
What are sound pressure waves? - Answers Variations in atmospheric pressure.
Define sine wave. - Answers Pure tone
Amplitude - Answers distance above/below the centerline of a waveform
Are low frequencies omnidirectional or uni directional - Answers They are omnidirectional ---- > High
frequencies are uni directional
What is the average range of human hearing? - Answers 20 kHz to 20,000 kHz
What frequencies do humans hear best? - Answers 1000 kHz to 4000 kHz.
What is the formula for wavelength? - Answers Wavelength = speed of sound / frequency.
What is the unit of measurement for wavelength? - Answers feet per cycle
What is the speed of sound at 70°F? - Answers Approximately 1,130 feet per second.
How does the speed of sound change with temperature? - Answers Increases by 1.1 feet per second
for each degree Fahrenheit.
What are the units of measurement for frequency? - Answers Hertz or cycles per second.
What does it mean to increase amplitude? - Answers amplify
What does it mean to decrease amplitude? - Answers to attenuate
What is a cycle? - Answers One complete excursion of a wave.
What is a compression? - Answers Area of greater than normal atmospheric pressure.
What is a rarefaction? - Answers Area of less than normal atmospheric pressure.
What is the unit of measurement for amplitude? - Answers Decibels
The time is takes to complete one cycle in a wave is known as - Answers period
Phase Shift - Answers is a time relationship between two or more waveforms
What is phase measured in? - Answers Degrees
Phase - Answers is the difference in time of one waveform compared to other
Polarity - Answers Absolute positive and negative values in a waveform
What are the four parts of the envelope of an instrument? - Answers Attack, decay, sustain, release.
Define fundamental. - Answers the frequency of the note being played
What are whole-number multiples of the fundamental called? - Answers Harmonics.
What is it called when the frequency doubles? - Answers Octave.
What does the RMS value represent? - Answers ROOT MEAN SQUARE (Average of all peak amplitude
values)
What is peak amplitude - Answers the measurement of either the maximum positive or negative
signal level of a wave.
At what angle does sound reflect off a surface boundary? - Answers Equal and opposite to its original
angle of incidence.
What is diffraction? - Answers Sound pressure wave's ability to bend around an object.
The decibel scale is designed to measure one value against another; this is called a - Answers Floating
scale
What is the best level for listening in dB SPL? - Answers 85 dB SPL.
What is masking? - Answers Loud sounds covering up softer sounds.
established the Equal Loudness Contours? - Answers Fletcher and Munson.
What is the third harmonic of 250 Hz? - Answers 750 Hz
What is the first octave of 500 Hz? - Answers 1000 Hz
What is the second harmonic of 1500 Hz? - Answers 3000 Hz
What is the second octave of 200 Hz? - Answers 800 Hz
What is the wavelength of a 1000 Hz wave? - Answers 1.13 ft/cycle
What is the wavelength of a 20 Hz wave? - Answers 56.5 ft per cycle
sound - Answers A brain's perception and interpretation of a vibration from a physical stimulus
What is a waveform? - Answers Graphic representation of sound pressure level or voltage
What are sound pressure waves? - Answers Variations in atmospheric pressure.
Define sine wave. - Answers Pure tone
Amplitude - Answers distance above/below the centerline of a waveform
Are low frequencies omnidirectional or uni directional - Answers They are omnidirectional ---- > High
frequencies are uni directional
What is the average range of human hearing? - Answers 20 kHz to 20,000 kHz
What frequencies do humans hear best? - Answers 1000 kHz to 4000 kHz.
What is the formula for wavelength? - Answers Wavelength = speed of sound / frequency.
What is the unit of measurement for wavelength? - Answers feet per cycle
What is the speed of sound at 70°F? - Answers Approximately 1,130 feet per second.
How does the speed of sound change with temperature? - Answers Increases by 1.1 feet per second
for each degree Fahrenheit.
What are the units of measurement for frequency? - Answers Hertz or cycles per second.
What does it mean to increase amplitude? - Answers amplify
What does it mean to decrease amplitude? - Answers to attenuate
What is a cycle? - Answers One complete excursion of a wave.
What is a compression? - Answers Area of greater than normal atmospheric pressure.
What is a rarefaction? - Answers Area of less than normal atmospheric pressure.
What is the unit of measurement for amplitude? - Answers Decibels
The time is takes to complete one cycle in a wave is known as - Answers period
Phase Shift - Answers is a time relationship between two or more waveforms
What is phase measured in? - Answers Degrees
Phase - Answers is the difference in time of one waveform compared to other
Polarity - Answers Absolute positive and negative values in a waveform
What are the four parts of the envelope of an instrument? - Answers Attack, decay, sustain, release.
Define fundamental. - Answers the frequency of the note being played
What are whole-number multiples of the fundamental called? - Answers Harmonics.
What is it called when the frequency doubles? - Answers Octave.
What does the RMS value represent? - Answers ROOT MEAN SQUARE (Average of all peak amplitude
values)
What is peak amplitude - Answers the measurement of either the maximum positive or negative
signal level of a wave.
At what angle does sound reflect off a surface boundary? - Answers Equal and opposite to its original
angle of incidence.
What is diffraction? - Answers Sound pressure wave's ability to bend around an object.
The decibel scale is designed to measure one value against another; this is called a - Answers Floating
scale
What is the best level for listening in dB SPL? - Answers 85 dB SPL.
What is masking? - Answers Loud sounds covering up softer sounds.
established the Equal Loudness Contours? - Answers Fletcher and Munson.
What is the third harmonic of 250 Hz? - Answers 750 Hz
What is the first octave of 500 Hz? - Answers 1000 Hz
What is the second harmonic of 1500 Hz? - Answers 3000 Hz
What is the second octave of 200 Hz? - Answers 800 Hz
What is the wavelength of a 1000 Hz wave? - Answers 1.13 ft/cycle
What is the wavelength of a 20 Hz wave? - Answers 56.5 ft per cycle
