Ch. 2 - Sound

Question 0

What do waves transfer from one location to another?

Matter
Molecules
Energy
Water

Answer 0

Energy

Question 1

Study diagram questions pg 16

Answer 1

.

Question 2

Which of the following best describes sound waves:

A series of compressions and rarefactions
Waves that are heard by man
Movement of molecules and energy from one location to another
Waves that are used to make images of anatomy

Answer 2

A series of compressions and rarefactions

Question 3

Which of the following terms does not belong with the others:

Compression
Region of high density
Region of high pressure
Wide molecular spacing

Answer 3

Wide molecular spacing

Question 4

Variations in all of the following identify specific waves as acoustic waves except:

Pressure
Parameters
Density
Acoustic variables

Answer 4

Parameters

Question 5

All of the following are true of sound waves except:

They are acoustic
They are pressure waves
They are transverse
They move energy

Answer 5

They are transverse

Question 6

All of the following are acoustic parameters except:

Pressure
Period
Propagation speed
Frequency

Answer 6

Pressure

Question 7

Which of the following best describes sound waves:

Transverse, pressure waves
Transverse, longitudinal waves
Longitudinal, out-of-phase waves
Longitudinal, pressure waves

Answer 7

Longitudinal, pressure waves

Question 8

Two waves are traveling in a medium and arrive at a location at the same time. What event takes place?

Constructive interference
Destructive interference
Interference
Reflection

Answer 8

Interference

Question 9

Which types of waves will exhibit both constructive and destructive interference?

Waves of different amplitudes
A pair of longitudinal waves
Waves of different frequency
Out-of-phase waves

Answer 9

Waves of different frequency

Question 10

What units are used to report pressure of a sound beam?

Pounds
Centimeters
Pascals
Kg/cm

Answer 10

Pascals (Pa)

Question 11

T or F? Acoustic variables allow us to determine which waves are sound waves and which are not.

Answer 11

True

Question 12

True or False? Acoustic parameters are used to describe the features of sound waves.

Answer 12

True

Question 13

List the 7 Acoustic Parameters

Answer 13

Period
Frequency
Amplitude
Power
Intensity
Wavelength
Propagation Speed

Question 14

What is defined as “the effects of the medium upon the sound wave”?

Answer 14

Acoustic propagation properties

Question 15

What is defined as “the effects of the sound wave upon the biological tissue through which it passes”?

Answer 15

Biologic effects

Question 16

T or F? Sound travels in a straight line.

Answer 16

True

Question 17

T or F? Sound waves are a transverse waves.

Answer 17

False