Ultrasound Physics Mock Exam Questions for SPI |
Complete Answer Key | New Update | Exam Prep
250 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Basic Physics
2 Transducers
3 Instrumentation
4 Doppler
5 Artifacts
6 Bioeffects & Safety
7 Quality Assurance
Page 1
,Q1
What is the unit of frequency?
A) Meters
B) Hertz (Hz) CORRECT
C) Seconds
D) Decibels
Rationale
Frequency is measured in Hertz (cycles per second).
Q2
The speed of sound in soft tissue is approximately:
A) 1,590 m/s
B) 1,540 m/s CORRECT
C) 3,000 m/s
D) 330 m/s
Rationale
Average speed of sound in soft tissue is 1,540 m/s.
Q3
Wavelength is defined as:
A) The distance between two consecutive peaks CORRECT
B) The number of cycles per second
C) The time for one cycle
D) The height of the wave
Rationale
Wavelength is the spatial period of a wave.
Page 2
,Q4
Period is:
A) The time for one cycle CORRECT
B) The distance between two peaks
C) Cycles per second
D) The amplitude of the wave
Rationale
Period is the time it takes to complete one cycle.
Q5
Frequency and period are:
A) Directly proportional
B) Inversely proportional CORRECT
C) Unrelated
D) Equal
Rationale
Frequency = 1/period; as frequency increases, period decreases.
Q6
Which of the following is determined by the sound source?
A) Frequency CORRECT
B) Speed
C) Wavelength
D) Attenuation
Rationale
Frequency is determined by the transducer (sound source).
Page 3
, Q7
Which of the following is determined by the medium?
A) Frequency
B) Speed CORRECT
C) Period
D) Amplitude
Rationale
Speed of sound depends on the medium's stiffness and density.
Q8
As frequency increases, wavelength:
A) Increases
B) Decreases CORRECT
C) Remains the same
D) Doubles
Rationale
Wavelength = speed/frequency; higher frequency means shorter wavelength.
Q9
The amplitude of a wave is:
A) The maximum displacement from rest CORRECT
B) The distance between peaks
C) The time for one cycle
D) The number of cycles per second
Rationale
Amplitude represents the strength or height of the wave.
Page 4
Complete Answer Key | New Update | Exam Prep
250 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Basic Physics
2 Transducers
3 Instrumentation
4 Doppler
5 Artifacts
6 Bioeffects & Safety
7 Quality Assurance
Page 1
,Q1
What is the unit of frequency?
A) Meters
B) Hertz (Hz) CORRECT
C) Seconds
D) Decibels
Rationale
Frequency is measured in Hertz (cycles per second).
Q2
The speed of sound in soft tissue is approximately:
A) 1,590 m/s
B) 1,540 m/s CORRECT
C) 3,000 m/s
D) 330 m/s
Rationale
Average speed of sound in soft tissue is 1,540 m/s.
Q3
Wavelength is defined as:
A) The distance between two consecutive peaks CORRECT
B) The number of cycles per second
C) The time for one cycle
D) The height of the wave
Rationale
Wavelength is the spatial period of a wave.
Page 2
,Q4
Period is:
A) The time for one cycle CORRECT
B) The distance between two peaks
C) Cycles per second
D) The amplitude of the wave
Rationale
Period is the time it takes to complete one cycle.
Q5
Frequency and period are:
A) Directly proportional
B) Inversely proportional CORRECT
C) Unrelated
D) Equal
Rationale
Frequency = 1/period; as frequency increases, period decreases.
Q6
Which of the following is determined by the sound source?
A) Frequency CORRECT
B) Speed
C) Wavelength
D) Attenuation
Rationale
Frequency is determined by the transducer (sound source).
Page 3
, Q7
Which of the following is determined by the medium?
A) Frequency
B) Speed CORRECT
C) Period
D) Amplitude
Rationale
Speed of sound depends on the medium's stiffness and density.
Q8
As frequency increases, wavelength:
A) Increases
B) Decreases CORRECT
C) Remains the same
D) Doubles
Rationale
Wavelength = speed/frequency; higher frequency means shorter wavelength.
Q9
The amplitude of a wave is:
A) The maximum displacement from rest CORRECT
B) The distance between peaks
C) The time for one cycle
D) The number of cycles per second
Rationale
Amplitude represents the strength or height of the wave.
Page 4
