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Ryan Fennessey
1. Atmospheric pressure refers to:
A. The region of space just prior to entering the earth's atmosphere.
B. The amount of pressure caused by a strong weather condition.
C. The density of air molecules around us at all times. *
D. The amount of carbon dioxide in the atmosphere.
2. Sound is made possible through the ___________ of a sound source displacing the air molecules around it.
A. shaking
B. vibration *
C. rubbing
D. singing
3. Frequency in terms of waveform characteristics refers to:
A. How loud a sound is
B. The perceived pitch of a sound*
C. How fast a waveform is moving
D. The harmonic content of a fundamental note
4.__________________ is the primary frequency of a sound. The sound may have overtones or lower harmonics present however the primary frequency content is called this.
A. Core Tone
B. Base Note
C. Fundamental Frequency *
D. Main Playline
5. Sound travels at roughly ______ miles per hour.
A. 560-590
B. 740-770 *
C. 710-730
D. 650-680
6. The tympanic membrane, also known as the __________, is a flap of skin-like material that acts as a diaphragm – receiving sound pressure waves and transmitting them through the three bones in the inner-ear.
A. hammer
B. outer ear
C. ear drum *
D. anvil
7. _____________ is the study of how sounds are perceived by the brain.
A. Acoustics
B. Psycho-realm analysis
C. Psychoacoustics *
D. Anthropology
8. Timbre refers to:
A. The harmonic frequency content that makes up the sound of a specific instrument. *
B. The pitch of a note.
C. The length of the waveform.
D. The maximum amplitude an instrument is capable of.
9. ADSR stands for:
A. Arppegiate, Delay, Sustain, Resonate
B. Attack, Delay, Sustain, Rewind
C. Aggress, Decay, Suspend, Release
D. Attack, Decay, Sustain, Release *
10. Auditory ________ happens when one sound affects the perception of another sound by our brain either through amplitude or frequency content.
A. beats
B. psychoacoustics
C. masking*
D. curve
11. Amplitude is the measure of ___________ and is measured in ___________.
A. frequency, Hertz
B. velocity, ohms
C. loudness, decibels*
D. resistance, ohms
12. Sound pressure waves are made up of two regions, _______________ (high pressure region) and rarefactions (low pressure region).
A. compulsion
B. resonance
C. compression*
D. secluded
13. Acoustic _______ occur(s) when two sounds close in frequency are played together. The result is a an audible phase interaction.
A. beats *
B. masking
C. psychoacoustics
D. curve
14. The ____________ is a snail shaped organ that contains reed-like fibers connected to hair follicles that vibrate at a resonant frequency.
A. tympanic membrane
B. malleus
C. stapes
D. cochlea *
15. ____________ is the measure of the amount of compressions and rarefactions (complete cycles) that occur in 1 second of time.
A. Frequency *
B. Wavelength
C. Harmonic Content
D. Phase
