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Flashcards in Wave Characteristics Deck (44)
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1

Greek word for hearing

Acoustic

2

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

Acoustic variable

3

Acoustic variables

Pressure
Density
Particle motion
Temperature

4

Force in a given area

Pressure

5

Unit of force

Pascal (Pa)

6

Other units for pressure

Pounds per square inch
N/m2

7

Concentration of matter

Mass per unit volume

Density

8

Unit for density

Kg/cm3

9

Concentration for heat energy

Temprature

10

Unit for temp

Degrees fahrenheit
Celsius
Kelvin

11

Distance moved by the molecules in the medium

Particle motion

12

Unit for distance/particle motion

Nanometer

13

Two most widely used acoustic variable

Pressure
Density

14

Rayles

Kg/ms2

15

Maximum variation

Measure how far variable gets away

Amplitude

16

Rate at which work is done

Power

17

Unit for power

Watts

18

Power per unit mass

Intensity

19

Unit for intensity

W/cm2

20

Intensity =

Power/area

21

The higher the frequency, _______ the volume

Stable

22

Speed at which sound moves throuh a medium

Propagation speed

23

Speed =

Wavelength x frequency

24

Unit for propagation speed

Meters per second

25

Sound propagation properties

Elasticity
Density
Bulk modulus
Compressibilty

26

Ability of an object to return to its original shape

Elasticity

27

Mass per unit volume

Density

28

Symbol used in density

Rho (p)

29

Velocity is ____________ to thr square of density

Inversely proportional

30

Fractional decrease in volume when pressure is applied

Compressibility