Podcast
Questions and Answers
What is a characteristic of mechanical waves?
What is a characteristic of mechanical waves?
- They require a physical medium (correct)
- They can propagate through a vacuum
- Their speed depends on the type of wave
- They have a constant velocity in all mediums
What type of wave is a sound wave?
What type of wave is a sound wave?
- Mechanical wave (correct)
- Longitudinal wave
- Electromagnetic wave
- Transverse wave
What is the speed of electromagnetic waves in a vacuum?
What is the speed of electromagnetic waves in a vacuum?
- Approximately 400,000 m/s
- Approximately 299,792.456.2 m/s (correct)
- Approximately 200,000 m/s
- Approximately 100,000 m/s
What is a characteristic of longitudinal waves?
What is a characteristic of longitudinal waves?
What is the relationship between two inversely proportional parameters?
What is the relationship between two inversely proportional parameters?
What is a key parameter to consider in sound waves?
What is a key parameter to consider in sound waves?
What type of wave requires an initial vibration from a source object?
What type of wave requires an initial vibration from a source object?
What is the direction of particle displacement in transverse waves?
What is the direction of particle displacement in transverse waves?
What determines the speed of mechanical waves?
What determines the speed of mechanical waves?
What is a characteristic of electromagnetic waves?
What is a characteristic of electromagnetic waves?
What is the primary characteristic that distinguishes sound waves from electromagnetic waves?
What is the primary characteristic that distinguishes sound waves from electromagnetic waves?
What is the term for the increase in pressure or density in a sound wave?
What is the term for the increase in pressure or density in a sound wave?
What is the result of a vibration occurring in a medium?
What is the result of a vibration occurring in a medium?
What is the direction of the displacement of the medium in a longitudinal wave?
What is the direction of the displacement of the medium in a longitudinal wave?
What is the term for the decrease in pressure or density in a sound wave?
What is the term for the decrease in pressure or density in a sound wave?
What is the year in which the clinical adoption of ultrasound commenced in Glasgow?
What is the year in which the clinical adoption of ultrasound commenced in Glasgow?
What is the term for the transfer of energy from one location to another without physical contact between the points?
What is the term for the transfer of energy from one location to another without physical contact between the points?
What is the nature of the intermolecular forces that connect molecules in a medium?
What is the nature of the intermolecular forces that connect molecules in a medium?
What is the term for a disturbance or fluctuation that transfers energy from one location to another within a medium?
What is the term for a disturbance or fluctuation that transfers energy from one location to another within a medium?
Who pioneered the use of B-mode ultrasound for brachial plexus blockade procedures?
Who pioneered the use of B-mode ultrasound for brachial plexus blockade procedures?
What was the primary motivator for the advancement of SONAR technology?
What was the primary motivator for the advancement of SONAR technology?
Who identified the piezoelectric effect, which is foundational for later ultrasound technology?
Who identified the piezoelectric effect, which is foundational for later ultrasound technology?
What was the significant outcome of Langevin's utilization of piezoelectric principles?
What was the significant outcome of Langevin's utilization of piezoelectric principles?
When did the medical industry start experimenting with ultrasound for medical purposes?
When did the medical industry start experimenting with ultrasound for medical purposes?
What was the subject of Dussik's pioneering study published in 1942?
What was the subject of Dussik's pioneering study published in 1942?
What was the significant development in ultrasound technology that marked a new era in medical imaging?
What was the significant development in ultrasound technology that marked a new era in medical imaging?
When did institutions worldwide develop pulsed ultrasound technology?
When did institutions worldwide develop pulsed ultrasound technology?
What was the significant outcome of the development of pulsed ultrasound technology?
What was the significant outcome of the development of pulsed ultrasound technology?
Who explored the concept of sound beyond the audible spectrum?
Who explored the concept of sound beyond the audible spectrum?
What was the significant development in ultrasound technology that expanded with the advent of 3D and 4D imaging?
What was the significant development in ultrasound technology that expanded with the advent of 3D and 4D imaging?
Flashcards are hidden until you start studying
Study Notes
Sound Waves
- Sound is a form of energy generated through vibration, transmitting energy from one location to another.
- Sound waves are characterized by alternating compressions and rarefactions, requiring a medium (solid, liquid, or gas) to propagate.
- Compressions signify an increase in pressure or density, while rarefactions occur during the troughs of the sound wave.
Types of Waves
- Mechanical Waves: defined by the disturbance of a physical medium, examples include ocean waves, sound waves, and seismic waves.
- Electromagnetic Waves (transverse wave): do not require a medium and can propagate through a vacuum, examples include radio waves, X-rays, and light.
Wave Classification
- Longitudinal Waves: particle displacement occurs parallel to the wave's direction of energy movement, requires a material for wave travel, and speed depends on the type and state of the medium.
- Transverse Waves: particle displacement occurs perpendicular to the wave's direction of propagation, velocity is relatively constant at approximately 299,792.456.2 m/s in a vacuum.
Ultrasound Technology
- 1794: Spallanzani explored sound beyond the audible spectrum.
- 1912: The Curie brothers identified the piezoelectric effect, foundational for later ultrasound technology.
- 1917: World War I's naval warfare spurred the advancement of SONAR technology.
- Late 1940s: Diagnostic uses for ultrasound started to emerge, marking a new era in medical imaging.
- 1950: Clinical adoption of ultrasound commenced in Glasgow, paving the way for broader medical applications.
- 1965: Advancements made real-time ultrasound imaging feasible.
- 1980s: The medical industry began experimenting with ultrasound for medical purposes.
- 1990s: Institutions worldwide developed pulsed ultrasound technology, leading to 'B Mode' imaging.
- 1994: Steven Kapral and his team pioneered the use of B-mode ultrasound for brachial plexus blockade procedures.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
