Wave Characteristics

Question 1

Greek word for hearing

Answer 1

Acoustic

Question 2

Measurable quantities that vary within a medium as a sound propagates through the medium

Answer 2

Acoustic variable

Question 3

Acoustic variables

Answer 3

Pressure
Density
Particle motion
Temperature

Question 4

Force in a given area

Answer 4

Pressure

Question 5

Unit of force

Answer 5

Pascal (Pa)

Question 6

Other units for pressure

Answer 6

Pounds per square inch

N/m2

Question 7

Concentration of matter

Mass per unit volume

Answer 7

Density

Question 8

Unit for density

Answer 8

Kg/cm3

Question 9

Concentration for heat energy

Answer 9

Temprature

Question 10

Unit for temp

Answer 10

Degrees fahrenheit
Celsius
Kelvin

Question 11

Distance moved by the molecules in the medium

Answer 11

Particle motion

Question 12

Unit for distance/particle motion

Answer 12

Nanometer

Question 13

Two most widely used acoustic variable

Answer 13

Pressure

Density

Question 14

Rayles

Answer 14

Kg/ms2

Question 15

Maximum variation

Measure how far variable gets away

Answer 15

Amplitude

Question 16

Rate at which work is done

Answer 16

Power

Question 17

Unit for power

Answer 17

Watts

Question 18

Power per unit mass

Answer 18

Intensity

Question 19

Unit for intensity

Answer 19

W/cm2

Question 20

Intensity =

Answer 20

Power/area

Question 21

The higher the frequency, _______ the volume

Answer 21

Stable

Question 22

Speed at which sound moves throuh a medium

Answer 22

Propagation speed

Question 23

Speed =

Answer 23

Wavelength x frequency

Question 24

Unit for propagation speed

Answer 24

Meters per second

Question 25

Sound propagation properties

Answer 25

Elasticity Density Bulk modulus Compressibilty

Question 26

Ability of an object to return to its original shape

Answer 26

Elasticity

Question 27

Mass per unit volume

Answer 27

Density

Question 28

Symbol used in density

Answer 28

Rho (p)

Question 29

Velocity is ____________ to thr square of density

Answer 29

Inversely proportional

Question 30

Fractional decrease in volume when pressure is applied

Answer 30

Compressibility

Question 31

Velocity of sound is _______ to the squaee root of compressibility

Answer 31

Inversely proportional

Question 32

Symbol for compressibility

Answer 32

K

Question 33

Reciprocal of compressibility

Answer 33

Bulk modulus

Question 34

Bulk modulus is _______ to the velocity of sound

Answer 34

Proportional

Question 35

Compressibility is also known as

Answer 35

Stiffness

Question 36

Resistance of the material to compression "Hardness"

Answer 36

Stiffness

Question 37

Relative measurement that compare value at one point

Answer 37

Decibels (dB)

Question 38

Decibel is also known as

Answer 38

Relative scale

Question 39

The decibel scale is ________ of the bel scale

Answer 39

1/10th

Question 40

Scale is the "bel" scale is named after

Answer 40

Alexander Graham Bell

Question 41

It is a logarithmic scale

Answer 41

Decibel

Question 42

Useful in expressing data that covers a wide range of values

Answer 42

Logarithmic scale

Question 43

Abbreviation of logarithm

Answer 43

Log

Question 44

The number of tens that must be multiplied together that result in that number

Answer 44

Logarithm