Chapters 1,2,12

Question 1

study of sound

Answer 1

acoustics

Question 2

consists of only one frequency

Answer 2

pure tone

Question 3

moves back and forth a fixed number of times per second, no matter how hard the turning fork is struck

Answer 3

simple harmonic motion

Question 4

tendency for motion or lack of motion to continue

Answer 4

inertia

Question 5

force that causes a deformed structure to resume its original shape

Answer 5

elasticity

Question 6

speed of an object

Answer 6

velocity

Question 7

Absolute value of a maximum displacement from a zero value during one period of an oscillation

Answer 7

amplitude

Question 8

number of completed cycles per second

Answer 8

frequency

Question 9

time taken for each cycle

Answer 9

period of vibration

Question 10

particle movement is in the same direction as wave movement

Answer 10

longitudinal wave

Question 11

waves seen radiating from tossing a stone or dipping a finger into water

Answer 11

transverse waves

Question 12

needed for production of sound

Answer 12

1. source of energy
2. vibrating sound
3. medium of transmission

Question 13

generates more than one frequency

Answer 13

complex tones

Question 14

pattern of vibration repeats itself exactly overtime

Answer 14

periodic soundwaves

Question 15

vibration is random and displays no repeated pattern

Answer 15

aperiodic soundwaves

Question 16

number of vibratory cycles per second

Answer 16

frequency

Question 17

listeners perception of frequency changes and differences

Answer 17

pitch

Question 18

what abbreviation does pitch use

Answer 18

mels

Question 19

is pitch physical or psychological?

Answer 19

psychological

Question 20

abbreviation frequency uses

Answer 20

Hz

Question 21

is frequency physical or psychological

Answer 21

physical

Question 22

causes sound wave to move down

Answer 22

rarefaction

Question 23

the larger the disturbance or displacement of the indivual particles the greater is the height of its graph above amplitude

Answer 23

true

Question 24

what determines loudness

Answer 24

amplitude

Question 25

greater frequeny has

Answer 25

higher pitch

Question 26

range of hearing

Answer 26

20-20,000 Hz

Question 27

range of frequencies most important for perceiving speech

Answer 27

100-5,000Hz

Question 28

amplitude or the intensity of a sound

Answer 28

Db

Question 29

Psychological measurement of loudness is sone, where loudness contour is the comparison of different tones to have the same loudness levels is phon.

Answer 29

true

Question 30

The unit of equal loudness is the

Answer 30

phon

Question 31

loudness level

Answer 31

sone

Question 32

speed of sound in air

Answer 32

c=344m/s

Question 33

wavelength

Answer 33

sound velocity divided by frequency

Question 34

sound intensity:

Answer 34

decrease inversely as a function of the square of the distance of the source

Question 35

Why sound travel faster in the steel than water?

Answer 35

steel is more dense

Question 36

Time horizontally, frequency vertically, intensity by intensity of blackness

Answer 36

spectrogram

Question 37

What is the speed sound travels at?

Answer 37

340m/s

Question 38

Sound lower than 20hz

Answer 38

subsonic

Question 39

sound higher than 20,000hz

Answer 39

supersonic

Question 40

Wave whose particle motion is perpendicular to the wave movement

Answer 40

transverse

Question 41

Wave whose particle motion is in the same direction as the wave movement

Answer 41

Longitudinal

Question 42

simple sound consists of

Answer 42

single frequency

Question 43

complex sound consist of

Answer 43

multiple frequencies

Question 44

loudness depends on...

Answer 44

amplitude

Question 45

pitch depends on...

Answer 45

frequency

Question 46

quality or timbre depends on...

Answer 46

waveform

Question 47

x-axis is frequency, y-axis is amplitude

Answer 47

spectrum

Question 48

velocity/frequency

Answer 48

wavelength

Question 49

amplitude or the intensity of a sound

Answer 49

dB

Question 50

the rarefaction part of the soundwave is

Answer 50

where the air pressure is lower than normal, and the molecules are separated

Question 51

simple sound vibration is

Answer 51

sinewave

Question 52

multiple frequencies are called

Answer 52

harmonics

Question 53

graphic representation of the frequency and relative amplitude of the components of complex sounds

Answer 53

spectrum

Question 54

amplitude x time

Answer 54

waveform

Question 55

loudness is...

Answer 55

phon

Question 56

sound pressure of conversation at 3 feet is

Answer 56

60-70dB

Question 57

unit of measuring pitch

Answer 57

mels

Question 58

what is the fundamental frequency?

Answer 58

lowest frequency that determines the repetition rate of the pattern