Chapter 3, 3 Bigness

Question 1

What are the parameters

Answer 1

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

Question 2

What are the 3 parameters that describes the magnitude of a sound wave

Answer 2

Amplitude, Power, intensity

Question 3

The difference between the maximum value of an acoustic variable

Answer 3

Amplitude

Question 4

Unit for amplitude

Answer 4

Any acoustic variable unit,
Pascal, g/cm^3, cm, decibel (dB)

Question 5

Amplitude is determined by what?

Answer 5

Sound source

Question 6

Can a sonographer adjust amplitude

Answer 6

Yes

Question 7

Difference between maximum and minimum values of an acoustic variable

Answer 7

Peak to peak amplitude

Question 8

Amplitude is measured from the middle or undisturbed value to the maximum value

Question 9

The rate of energy transfer or rate of work performed

Answer 9

Power

Question 10

Unit for power

Answer 10

Watts

Question 11

Can power be adjusted by a Sonographer

Answer 11

Yes

Question 12

Both power and amplitude describe what of the wave

Answer 12

Bigness, magnitude,
When power increases amplitude squared

Question 13

Formula for power

Answer 13

Power Amplitude ^2

Question 14

The concentration of energy in a sound beam

Answer 14

Intensity

Question 15

Unit for intensity

Answer 15

Watts/cm Square

Question 16

Formula for intensity W/cm2

Answer 16

Power(W) / area (cm)2

Question 17

Intensity is determined by

Answer 17

Sound source

Question 18

Can intensity be adjusted by a sonographer

Answer 18

Yes