PHYSICS TEST #1
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| show | MIRROR LIKE REFLECTIONS, REFLECTED BACK IN THE SAME ANGLE AS THE INCIDENT ANGLE, OR ORIGINAL ANGLE.OCCUR WHEN: 1. WL IS SMALLER THAN BOUNDARY. 2. THE BOUNDARY IS SMOOTH.
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| show | SOUND REFLECTED BACK IN MANY ANGLES RATHER THAN JUST ORIGINAL ANGLE LIKE WITH SPECULAR REFLECTION.OCCURS WHEN WL IS LARGER THAN BOUNDARY 2. THE BOUNDARY IS NOT SMOOTH.
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| REFRACTION | show 🗑
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| show | WEAKENING OF A SOUND BEAM AS IT PROPAGATES
1. ABSORPTION (GREATEST) 2.REFLECTION 3. SCATTERING
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| ATTENUATION COEFFICIENT | show 🗑
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| show | THE LENGTH OF SPACE 1 CYCLE TAKES UP.
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| DUTY FACTOR | show 🗑
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| show | SPEED AT WHICH A SOUND WAVES TRAVELS THRU A MEDIUM. ONLY DEPENDENT ON THE MEDIUM.
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| SHEAR WAVES | show 🗑
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| show | PARTICLE MOTION RUNS PARALLEL TO NORMAL VALUE
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| RANGE OF FREQUENCIES | show 🗑
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| PERIOD | show 🗑
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| show | # OF COMPLETE CYCLES PER SEC
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| show | ATTENUATION UNIT
UNIT OF COMPARISON
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| show | SATA (LOWEST)
SPTP (HIGHEST)
SPTA (MACHINE)
THE BIGGER THE SOUND WAVE, THE STRONGER IT IS.
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| RANGE EQUATION | show 🗑
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| show | OCCURS WHEN PARTICLES ARE SMALLER THAN THE WAVELENGTH HITTING THE BOUNDARY.THE INTENSITY OF THE SCATTERED SOUND DEPENDS ON THE FREQ TO THE 4TH POWER. IF THERE IS AN INCREASE IN FREQ, THEN THERE IS AN INCREaSE IN SCATTER.
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| CW VS. PW | show 🗑
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| show | DENSITY (KG/M3), PARTICLE MOTION (MM), PRESSURE (Pa), & TEMP (DEGREES)
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| show | SOUND HITS BOUNDARY AT A 90 DEGREE ANGLE
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| OBLIQUE INCIDENCE | show 🗑
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| DENSITY | show 🗑
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| show | WHEN WAVE HITS A DIFFERENT MEDIUM THAT HAS A DIFFERENT PS MAKES THE SOUND WAVE CHANGE SHAPE.
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| show | THE REDIRECTION OF SOUND IN MAY DIRECTIONS BY: ROUGH SURFACES, HETEROGENEOUS MEDIA (EX. BLOOD)
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| show | SCATTERED SOUND THAT GETS BACK TO THE TRANSDUCER.
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| show | IT ALLOWS THE TISSUE PARENCHYMA AND TISSUE INTERFACE TO BE SEEN.
HELPS TO MAKE IMAGING LESS DEPENDENT ON SCANNING ANGLE.
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| MEGA | show 🗑
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| show | THOUSANDS
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| show | SOFT TISSUE 1540M/S OR 1.54MM/US
AIR 331 M/S
BONE 3-4,000 M/S
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| TYPICAL DUTY FACTORS | show 🗑
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| show | THE EFFECT THE SOUND HAS ON THE MEDIUM.
Z=DENSITY (KG/M3) X PS(M/S)
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| show | PRESSURE (Pa)
DENSITY (Kg/m3)
TEMP (DEGREES)
PARTICLE MOTION (MM)
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| show | THE RATE AT WHICH ENERGY IS TRANSFERRED.
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| PRF (KHz) | show 🗑
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| PRP (MILLISECONDS) | show 🗑
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| show | DUTY FACTOR
FRACTION OF TIME PW IS ACTUALLY ON.
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| show | PULSED DURATION
TIME IT TAKES FOR ONE PULSE TO OCCUR
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| SPL | show 🗑
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| IMPEDANCE FORMULA | show 🗑
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| WAVELENGTH FORMULA | show 🗑
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| PRP FORMULA | show 🗑
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| ACOUSTIC IMPEDANCE FORMULA | show 🗑
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| 4 STEP FORMULA | show 🗑
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| INTENSITY FORMULAS | show 🗑
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Created by:
holly9610
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