Exam 2 Flashcards
1
Q
Sound
A
Consists of small and rapid variations in pressure in a fluid medium
2
Q
Sound Wave
A
The variation in pressure over time
3
Q
Waveform or Oscillogram
A
The graph of pressure over time
4
Q
Periodic Wave
A
The same pattern of air pressure is repeated exactly over and over
5
Q
Cycle
A
Repetition of a pattern
6
Q
Aperiodic
A
Not periodic
7
Q
Sine wave
A
a periodic wave that has a smooth and symmetrical curve. Simplest kind of wave. Can be measured by frequency and amplitude. Pure tone.
8
Q
Loudness
A
Not a physical property of sound - it is our mind’s perceptual response to amplitude.
9
Q
Fourier’s Theorem
A
Any complex wave can be analyzed as a combination of superimposed waves.
