Edelmen book (sound)

Question 1

Sound is a ___ and ____ wave. travels in a ____ line and

Answer 1

mechanical, longitudinal . straight

Question 2

The effects of the sound wave upon the biological tissue through which is passes

Answer 2

Biologic effects

Question 3

The effects of the medium upon the sound wave

Answer 3

Acoustic propagation properties

Question 4

3 acoustic variables

Answer 4

Pressure, density, and distance

Question 5

Concentration of force in an area and the unit

Answer 5

Pressure / unit: pascals

Question 6

Concentration of mass in a volume

Answer 6

Density / unit kg/cm3

Question 7

Measure of particle motion

Answer 7

Distance / unit cm, mm

Question 8

7 acoustic parameters

Answer 8

Period, frequency, amplitude, power, intensity, wavelength, prop speed

Question 9

Particles move in a direction that is perpendicular

Answer 9

Transverse wave

Question 10

Particles move in same direction that the wave propogates

Answer 10

Longitudinal wave

Question 11

Time it takes a wave to vibrate a single cycle or the time from the start of one cycles to the start of the next

Answer 11

Period us

Question 12

Number of cycles that occur in one second

Answer 12

Frequency Hz

Question 13

Frequency ranges from approx

Answer 13

2 MHZ - 15 MHZ

Question 14

Infrasound

Answer 14

< 20 hz

Question 15

Audible sound

Answer 15

20 hz - 20 khz

Question 16

Ultrasound

Answer 16

> 20 khz

Question 17

the 3 parameters

Answer 17

Amplitude, power, intensity

Question 18

Difference between the max value and min value of an acoustic variable. The bigness of the wave

Answer 18

Amplitude

Question 19

Rate of energy transfer or the rate at which work is performed

Answer 19

Power (watts)

Question 20

Concentration of energy in the sound beam

Answer 20

Intensity (W/ cm2)

Question 21

The distance or length of one complete cycle

Answer 21

Wavelength mm

Question 22

Wavelength ranges from

Answer 22

0.1 - 0.8 mm

Question 23

Rate at which sound wave travels through a medium

Answer 23

Propagation speed

Question 24

Slowest to fastest prop speed from lung to bone

Answer 24

lung, fat, soft tissue, liver, blood, muscle, tendon, bone.

Question 25

Characteristic of a medium that affects the speed of sound

Answer 25

Stiffness and density

Question 26

Describes the ability of an object to resist compression

Answer 26

Stiffness

Question 27

Relative weight of a material

Answer 27

Density

Question 28

What can be adjusted within these parameters

Answer 28

intensity, power, amplitude

Question 29

All sounds carry ___ from one location to another

Answer 29

energy

Question 30

Sound waves are also known as ___ waves

Answer 30

acoustic

Question 32

Ultrasound greater than

Answer 32

20,000 hz
20 kHz
0.02 MHz

Question 33

Infrasound less than

Answer 33

20 hz

Question 34

When elasticity is high then ___ is high

Answer 34

Compressibility

Question 35

Elasticity and stiffness are ___ related

Answer 35

Inversely

Question 36

Stiffness synonym

Answer 36

Bulb modulus

Question 37

What is the opposite of stiffness

Answer 37

Elasticity and compressibility