Nsci/Psyc 225 Exam 3 Unc Updated Actual Questions And Correct Answers

NSCI/PSYC 225 EXAM 3 UNC UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. Sound (physical definition)
Answer:
sound is pressure changes in the air or other medium

Question:
2. Sound (perceptual definition)
Answer:
the experience we have when we hear

Question:
3. condensation
Answer:
increase in pressure pushes particles together

Question:
4. rarefraction
Answer:
decrease in pressure causes particles to spread out

Question:
5. frequency
Answer:
How many wave peaks pass a certain point per given time

Question:
6. amplitude of a wave
Answer:
the maximum displacement of the medium from its rest position

Question:
7. waveform
Answer:
timbre

Question:
8. pure tone
Answer:
a tone of a single frequency (rare)

Question:
9. Hertz (Hz)

, Answer:
Unit of measurement for frequency

Question:
10. frequency is the __________ of wavelength.
Answer:
inverse

Question:
11. wavelength is to color as frequency is to
Answer:
pitch

Question:
12. amplitude determines... (sound)
Answer:
loudness

Question:
13. tone chroma
Answer:
a sound quality shared by tones that have the same octave interval

Question:
14. 1 hertz
Answer:
1 cycle per second

Question:
15. Human Hearing Range
Answer:
20-20,000 Hz

Question:
16. humans hear best at
Answer:
1000-5000hz

Question:
17. amplitude (sound definition)
Answer:
the pressure difference between the atmospheric pressure and the maximum pressure of the wave

Question:
18. Amplitude is measured in