Understanding Ultrasound physics ch 1-3
Study online at https://quizlet.com/_3pi1be
1. What are the 5 main relationships in ultra- unrelated, related, directly related, in-
sounds? versely, reciprocal.
2. What is an UNRELATED relationship? two items that are not associated. for ex-
ample hair color and shoes.
3. What is a RELATED relationship? two items that are associated or affiliated.
for example weight is related to diet.
4. What is a DIRECTLY RELATED relationship? two items that are associated, so when
one item increases, the other also in-
crease. for example skill are directly pro-
portional or practice.
5. What is an INVERSELY RELATED relationship? two items are associated so that when
one item increase, the other decreases.
for example golf score to skill.
6. What is a RECIPROCAL relationship? two numbers that when multiplied to-
gether the result equals 1.
7. What does a positive exponent indicate? the value is a number greater than 10.
8. what does a negative exponent indicate? the value is a number less than 1.
9. what does a zero exponent indicate? the number falls between 1 and 10.
10. What is media? the forum through which sound travels.
11. What is a mechanical wave? a wave in which particles in the medium
move.
12. What kind of wave is sound? sound is a longitudinal wave, and travels
in a straight line.
1/6
, Understanding Ultrasound physics ch 1-3
Study online at https://quizlet.com/_3pi1be
13. What are the 3 acoustic variables of sound? pressure, density, and distance.
14. What is pressure? a concentration of mass in an area.
15. What is density? a concentration of mass in a volume.
Think feather steel example.
16. What is distance? a measure of particles in motion.
17. What are the 7 acoustic parameters? Period, Frequency, Amplitude, Power,
Intensity, wavelength, and propagation
speed.
18. What are the two distinctions of waves? Transverse and longitudinal waves.
19. What is a transverse wave? A transverse wave is one in which the par-
ticles move in a direction perpendicular
to the direction that the wave propagates.
20. What is a longitudinal wave? A wave in which the particles move in the
same direction that the wave propagates.
21. What is interference? Multiple beams that arrive at an identi-
cal location at the same time, waves lose
their individual characteristics combine
to form a single wave.
22. What are the two main forms of interference? In-phase and out-of-phase
23. What does is in-phase mean? when waves peaks occur at the same time
and at the same location.
24. what does is out-of-phase? when waves occur at different times and
so their throughs are out of step.
2/6
Study online at https://quizlet.com/_3pi1be
1. What are the 5 main relationships in ultra- unrelated, related, directly related, in-
sounds? versely, reciprocal.
2. What is an UNRELATED relationship? two items that are not associated. for ex-
ample hair color and shoes.
3. What is a RELATED relationship? two items that are associated or affiliated.
for example weight is related to diet.
4. What is a DIRECTLY RELATED relationship? two items that are associated, so when
one item increases, the other also in-
crease. for example skill are directly pro-
portional or practice.
5. What is an INVERSELY RELATED relationship? two items are associated so that when
one item increase, the other decreases.
for example golf score to skill.
6. What is a RECIPROCAL relationship? two numbers that when multiplied to-
gether the result equals 1.
7. What does a positive exponent indicate? the value is a number greater than 10.
8. what does a negative exponent indicate? the value is a number less than 1.
9. what does a zero exponent indicate? the number falls between 1 and 10.
10. What is media? the forum through which sound travels.
11. What is a mechanical wave? a wave in which particles in the medium
move.
12. What kind of wave is sound? sound is a longitudinal wave, and travels
in a straight line.
1/6
, Understanding Ultrasound physics ch 1-3
Study online at https://quizlet.com/_3pi1be
13. What are the 3 acoustic variables of sound? pressure, density, and distance.
14. What is pressure? a concentration of mass in an area.
15. What is density? a concentration of mass in a volume.
Think feather steel example.
16. What is distance? a measure of particles in motion.
17. What are the 7 acoustic parameters? Period, Frequency, Amplitude, Power,
Intensity, wavelength, and propagation
speed.
18. What are the two distinctions of waves? Transverse and longitudinal waves.
19. What is a transverse wave? A transverse wave is one in which the par-
ticles move in a direction perpendicular
to the direction that the wave propagates.
20. What is a longitudinal wave? A wave in which the particles move in the
same direction that the wave propagates.
21. What is interference? Multiple beams that arrive at an identi-
cal location at the same time, waves lose
their individual characteristics combine
to form a single wave.
22. What are the two main forms of interference? In-phase and out-of-phase
23. What does is in-phase mean? when waves peaks occur at the same time
and at the same location.
24. what does is out-of-phase? when waves occur at different times and
so their throughs are out of step.
2/6
