5 Written Questions

1. open reflects as low pressure
   closed reflects as high pressure
2. soundsgood
3. odd multiple of fundamental
4. liquids and slids. can't travel through vacuum
5. sounds bad

5 Matching Questions

1. node
2. doppler shift
3. open pipe example
4. beats
5. 10 db =

1. a twice as loud
2. b superimposition of nearly identical frequencies
3. c brass intrusments, flutes, and saxophones.
4. d change in frequency of sound
5. e at median

5 Multiple Choice Questions

1. tone color or quality
   1. octave
   2. node
   3. timbre
   4. antinode
2. .5 * wavelength
   1. node
   2. open pipe example
   3. nodes seperated by
   4. sound detectors
3. loudness
   1. amplitude determines
   2. resonance increases
   3. sound detectors
   4. open pipe example
4. pitch
   1. sound level
   2. open pipe resonance
   3. resonance increases
   4. frequency of sound wave
5. decibels
   1. sound level
   2. sound level measured in
   3. sound detectors
   4. nodes seperated by

5 True/False Questions

1. open pipe resonance → a/4, 3a/4, 5a/4, 7a/4

   True        False

2. antinode → at extreme

   True        False

3. octave → ratio of 1;2

   True        False

4. fundamental → 110 db painful 10 barely audible

   True        False

5. closed pipe example → brass intrusments, flutes, and saxophones.

   True        False