(Graded A+)-American Public University
Question 1 of 15
2.0 Points
The speed of sound through air is
A.50 meters per second
Correct B.340 meters per second
C.1500 meters per second
D.3000 meters per second
Answer Key: B
Question 2 of 15
2.0 Points
Pitch is primarily dtermined by the of the sound wave.
A. amplitude
, B. clarity
C.decibels
Correct D.frequency
Answer Key: D
Question 3 of 15
2.0 Points
Loudness of pure tones depends on frequency and sound pressure level can be shown
graphically using
Correct A.equal loudness curves
B.timbre resonance curves
C.receiver operating characteristic curves
D.Fourier functions
Answer Key: A