EDELMAN SPI EXAM CH. 3 DESCRIBING SOUND
WAVES QUESTIONS WITH VERIFIED ACCURATE
ANSWERS
Seven Parameters of Sound Waves - Answers -Period, Frequency, Amplitude, Power,
Intensity, Wavelength, Speed
What is the Source of a sound wave ? - Answers -The ultrasound system and
transducer
Period - Answers -Start of one cycle to the start of the next cycle.
What are the units of period ? - Answers -Time
What is the typical ultrasound value of period ? - Answers -.06 to .5 microseconds
How is period determined and can you adjust it ? - Answers -Period is determined by
the sound source only and can not be adjusted.
Frequency - Answers -The number of cycles in one second.
What are the units of frequency ? - Answers -Hertz
What is the typical ultrasound range of frequency ? - Answers -2 MHz to 15 MHz
What is frequency determined by and is it adjustable ? - Answers -Frequency is
determined by sound source only and is not adjustable.
Infrasound - Answers -Less than 20 Hz
Audible Sound - Answers -20 Hz to 20kHz
Ultrasound - Answers -Above 20kHz
How are period and frequency related ? - Answers -They are inversely related and
reciprocal.
What three parameters describe size, magnitude, or strength of a sound wave ? -
Answers -Amplitude, Power, Intensity
Amplitude - Answers -The height of a wave from the baseline.
Peak to Peak Amplitude - Answers -Double the amplitude.
WAVES QUESTIONS WITH VERIFIED ACCURATE
ANSWERS
Seven Parameters of Sound Waves - Answers -Period, Frequency, Amplitude, Power,
Intensity, Wavelength, Speed
What is the Source of a sound wave ? - Answers -The ultrasound system and
transducer
Period - Answers -Start of one cycle to the start of the next cycle.
What are the units of period ? - Answers -Time
What is the typical ultrasound value of period ? - Answers -.06 to .5 microseconds
How is period determined and can you adjust it ? - Answers -Period is determined by
the sound source only and can not be adjusted.
Frequency - Answers -The number of cycles in one second.
What are the units of frequency ? - Answers -Hertz
What is the typical ultrasound range of frequency ? - Answers -2 MHz to 15 MHz
What is frequency determined by and is it adjustable ? - Answers -Frequency is
determined by sound source only and is not adjustable.
Infrasound - Answers -Less than 20 Hz
Audible Sound - Answers -20 Hz to 20kHz
Ultrasound - Answers -Above 20kHz
How are period and frequency related ? - Answers -They are inversely related and
reciprocal.
What three parameters describe size, magnitude, or strength of a sound wave ? -
Answers -Amplitude, Power, Intensity
Amplitude - Answers -The height of a wave from the baseline.
Peak to Peak Amplitude - Answers -Double the amplitude.
