AET Unit 1 Test Study Guide questions
with verified answers graded A+
A sound wave is made up of a series of: - correct answer ✔✔all of the above (compression's and
rarefaction's, troughs, air pressure)
Speed of sound at sea level 70* Fahrenheit - correct answer ✔✔1130 ft/sec
Hz (Hertz) - correct answer ✔✔unit for frequency
Relationship b/w 2 tones an octave above the other: - correct answer ✔✔frequency differs by a
factor of two
Decibel (dB) - correct answer ✔✔measures loudness (amplitude)
External structure of ear: - correct answer ✔✔pinnae
How we perceive frequency: - correct answer ✔✔pitch
Sound - correct answer ✔✔Begins as a vibration, travels thru elastic medium and loses energy
over time
Threshold of Hearing - correct answer ✔✔0 dB (SPL)
Timbre determined by: - correct answer ✔✔overtones
with verified answers graded A+
A sound wave is made up of a series of: - correct answer ✔✔all of the above (compression's and
rarefaction's, troughs, air pressure)
Speed of sound at sea level 70* Fahrenheit - correct answer ✔✔1130 ft/sec
Hz (Hertz) - correct answer ✔✔unit for frequency
Relationship b/w 2 tones an octave above the other: - correct answer ✔✔frequency differs by a
factor of two
Decibel (dB) - correct answer ✔✔measures loudness (amplitude)
External structure of ear: - correct answer ✔✔pinnae
How we perceive frequency: - correct answer ✔✔pitch
Sound - correct answer ✔✔Begins as a vibration, travels thru elastic medium and loses energy
over time
Threshold of Hearing - correct answer ✔✔0 dB (SPL)
Timbre determined by: - correct answer ✔✔overtones
