Physics review Study guides, Class notes & Summaries

SPI Ultrasound Physics Review| 296 QUESTIONS| WITH VERIFIED COMPLETE SOLUTIONWhen will the Doppler shift be the highest? A.when the beam is parallel to the direction of flow B.when the beam is at a 45 degree angle to flow C.when the beam is perpendicular to the direction of flow D. Doppler shift is unrelated to beam angle Correct Answer: A.when the beam is parallel to the direction of flow Which of the following best describes the principles of hemodynamics? -The pressure difference requ...

What is the relationship between wavelength and frequency? Correct Answer: Inversely related. As one increase the other decrease The rate at which a sound wave travels through a medium Correct Answer: Propagation Speed Propagation Speed is reported in what units? Correct Answer: -meters per second -mm/µs -any distance divided by time Propagation Speed is determined by what? Correct Answer: The medium What is the sound of speed in soft tissue? Correct Answer: -1540 m/s -1.54 ...

Charge equation I=Q/t current = charge/time Resistance equation V=IR voltage = current x resistance Voltage equation (pd) V=E/Q voltage = energy/charge Power equation energy transfer P=E/t Power = energy transfer/time power voltage equation P = IV Power = current x voltage =I^2R What is energy measured in Joules What is time measured in seconds Potential difference units Watt per Amp A resistor of resistance 2.5kΩ has a voltage of 75V applied across it. What is th...

sound waves are correct answers mechanical & longitudinal acoustic variables correct answers pressure, density, distance acoustic parameters correct answers period, frequency, amplitude, power, intensity wavelength, propagation speed when the frequency of the wave differs, what kind of interference? correct answers constructive & destructive two waves are traveling and arrive at a location at the same time, what event takes place? correct answers interference period correct answer...

Modern physics Review AP Physics 2 with answers 1. nucleon - Answer>> consist of protons and neutrons 2. make up nucleon number/atomic mass number 3. radius of an atom - Answer>> depends on atomic mass 4. r=(1.2*10^-15m)A^1/3

If the output power setting is at 50% and this indicates 0dB, increasing the power by: Correct Answer: 3dB will increase the power output by a factor of 2 An increase in power of 3dB indicates an increase of 2X the original power. Every 3dB that the power increases will double the power output. 50% x 2 = 100% The doppler tracing demonstrates electrical noise. How can you reduce or eliminate this artifact? Correct Answer: Increase the wall filter settings Noise can be reduced by decrea...

When will the Doppler shift be the highest? A.when the beam is parallel to the direction of flow B.when the beam is at a 45 degree angle to flow C.when the beam is perpendicular to the direction of flow D. Doppler shift is unrelated to beam angle - ANSWER A.when the beam is parallel to the direction of flow Which of the following best describes the principles of hemodynamics? -The pressure difference required for blood to flow -The pressure created in a fluid system -A fluid's ability...

1. What action would be most in keeping w the ALARA principle while performing a diagnostic ultrasound exam? CORRECT ANSWERS: Complete the diagnostic scan in a timely fashion at the lowest output power that achieves a quality image Advocating use of the ALARA principle (as low as reasonably achievable) prudently minimizes the risk of bio effects (even tho epidemiological studies have revealed no known risk associated with the use of diagnostic ultrasound). 2. During performance of an obst...

HESI A2 PHYSICS REVIEW EXAM 88% PASS Q & A 2024HESI A2 PHYSICS REVIEW EXAM 88% PASS Q & A 2024HESI A2 PHYSICS REVIEW EXAM 88% PASS Q & A 2024

What is frequency determined by? - Answer- The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies - Answer- Lower What is the reciprocal of frequency and what is the symbol - Answer- Period, T The time it takes for 1 cycle to occur - Answer- Period What is propagation speed determined by - Answer- Stiffness and density of the medium Propagation speed of sound through soft tissue - Answer- 1,540 m/s ...