Ultrasound Physics Exam 1|101
Questions and Solutions
Period - -Length of time to create a single cycle
- Frequency - -Number of cycles per period of time
- Amplitude - -Strength of a wave
- Power - -Strength of a wave
- Intensity - -Strength of the wave over space
- Propagation Speed - -Distance that sound wave travels through a medium
in 1 second
- Wavelength - -Distance to complete 1 cycle
- Period and Frequency - -Which parameters are determined only on sound
source?
- Propagation speed - -Which parameters are determined only on the
medium?
- amplitude, power, intensity - -Which parameters are determined initially
by sound source, then altered by the medium?
- Wavelengths - -Which parameters are determined by both sound source
and medium?
- amplitude, power, intensity - -Which parameters are changed by the
Sonographer?
- Frequency and period - -Which parameters are determined by the
ultrasound?
- Hz - -The unit for frequency
- time - -The unit for period
- distance/time - -The unit for Prop. speed
- distance - -The unit for wavelength
, - Acoustic variables - -The unit for Amplitude
- Watts - -The unit for power
- Watts/cm(2) - -The unit for intensity
- Pressure, Density, Temp., Particle Motion (distance) - -What are the
Acoustic Variables?
- Pascals, Atmosphere, mmHg, kg/m(2), Ibs/in(2) - -What measures
pressure?
- Kg/cm(3) - -What measures density?
- Celsius or farenheit - -What measures temperature?
- Distance - -What measures particles motion?
- energy - -What do waves transfer?
- Mechanical and Electromagnetic - -Two types of waves
- Electromagnetic - -What type of wave will work in a medium or vacuum?
- Mechanical - -What type of wave needs a medium and causes a physical
change?
- Longitudinal and transverse - -Two types of mechanical waves
- Longitudinal - -Which mechanical wave has its particles move parallel to
the wave?
- Transverse - -Which mechanical wave has its particles move perpendicular
to the wave?
- Mechanical - -What kind of wave is sound?
- 1540 m/sec - -What is the speed of sound in soft tissue?
- no - -Does prop. speed change period?
- yes, physically - -Can prop. speed alter wavelength? If so, how?
- constructive/ in phase - -What kind of interference yield a higher
amplitude wave?
Questions and Solutions
Period - -Length of time to create a single cycle
- Frequency - -Number of cycles per period of time
- Amplitude - -Strength of a wave
- Power - -Strength of a wave
- Intensity - -Strength of the wave over space
- Propagation Speed - -Distance that sound wave travels through a medium
in 1 second
- Wavelength - -Distance to complete 1 cycle
- Period and Frequency - -Which parameters are determined only on sound
source?
- Propagation speed - -Which parameters are determined only on the
medium?
- amplitude, power, intensity - -Which parameters are determined initially
by sound source, then altered by the medium?
- Wavelengths - -Which parameters are determined by both sound source
and medium?
- amplitude, power, intensity - -Which parameters are changed by the
Sonographer?
- Frequency and period - -Which parameters are determined by the
ultrasound?
- Hz - -The unit for frequency
- time - -The unit for period
- distance/time - -The unit for Prop. speed
- distance - -The unit for wavelength
, - Acoustic variables - -The unit for Amplitude
- Watts - -The unit for power
- Watts/cm(2) - -The unit for intensity
- Pressure, Density, Temp., Particle Motion (distance) - -What are the
Acoustic Variables?
- Pascals, Atmosphere, mmHg, kg/m(2), Ibs/in(2) - -What measures
pressure?
- Kg/cm(3) - -What measures density?
- Celsius or farenheit - -What measures temperature?
- Distance - -What measures particles motion?
- energy - -What do waves transfer?
- Mechanical and Electromagnetic - -Two types of waves
- Electromagnetic - -What type of wave will work in a medium or vacuum?
- Mechanical - -What type of wave needs a medium and causes a physical
change?
- Longitudinal and transverse - -Two types of mechanical waves
- Longitudinal - -Which mechanical wave has its particles move parallel to
the wave?
- Transverse - -Which mechanical wave has its particles move perpendicular
to the wave?
- Mechanical - -What kind of wave is sound?
- 1540 m/sec - -What is the speed of sound in soft tissue?
- no - -Does prop. speed change period?
- yes, physically - -Can prop. speed alter wavelength? If so, how?
- constructive/ in phase - -What kind of interference yield a higher
amplitude wave?
