Physics review Study guides, Class notes & Summaries

What is natural movement in a gravitational field? - correct answerAll objects move in the direction of the g field on their own. Unnatural movement is against the field (when a force is exerted against the field). What is Displacement? - correct answerDisplacement is the change in location of an object. What is Velocity? - correct answerVelocity is the rate of change of displacement (x) v=x/t What is Acceleration? - correct answerAcceleration is the rate of change of velocity (v) a=v/t...

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 tis...

Radiology Physics Review

*** What action would be most in keeping w the ALARA principle while performing a diagnostic ultrasound exam? - 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 w the use of diagnostic ultrasound) ***During performance of an obstetric ultrasound ex...

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

What is the definition of ionization? - correct answer The removal of an orbital electron from an atom as radiation passes through What is the definition of energy? - correct answer The ability to do work What are the 7 forms of energy? - correct answer potential, kinetic, chemical, electrical, thermal, nuclear, electromagnetic Which of the 7 forms...

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

AP Physics C: Mechanics Review with Answers displacement symbols, units change in ___ only dependent on ___ & ___ positions vector or scalar? equation (integral of ___) - Answer>> a) ∆x, ∆y, or ∆z; m b) position c) final, initial d) vector e) ∆x = ∫v(t)dt

rade 7 - Physics Review – FORMULAS 2023 Formula for Weight - ANS-W = mg (weight = mass times acceleration of gravity) Formula for speed - ANS-s = d/t (speed = distance divided by time) Formula for velocity - ANS-v = d/t (velocity = distance divided by time) Formula for momentum - ANS-p = mv (momentum = mass times velocity) Formula for force - ANS-F = ma (force = mass times acceleration of gravity) Force - ANS- SI for distance - ANS-m SI for acceleration - ANS-m/s2 SI for momentum - A...