Understanding Ultrasound Physics (Eldelman) 4th edition Ch. 1 & 2
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56 Terms
directly
How are the size of a tree and its age related?
unrelated
How are the height of a person and the color of his automobile related?
inversely
How is the age of a loaf of bread related to its freshness?
square yards
Which of the following is an appropriate unit for area?
cm
Which of the following is not an appropriate unit for volume?
second
All of the following are measures of length except?
micro
milli
deci
deca
hecto
mega
List the metric terms in increasing order
giga
kilo
hecto
centi
micro
nano
List these metric terms in decreasing order
8000
how many milliliters are in 8 liters
300
how many centimeters are in 3 meters?
3
how many kilometers are in 3000 meters
0.01
what is the reciprocal of 100?
8
what is the reciprocal of 1/8
3,000,000
how many hertz is 3 MHz
5000
how many milliliters are contained in a jar filled with 5 liters of fluid?
0
how many liters are contained in 80 ml of fluid?
100 times
how much bigger is a thousand than ten?
1000 times
how much bigger is a billion than a million?
1/10
how much smaller is a hundred than a thousand?
energy
what do waves transfer from one location to another?
a series of compressions and rarefactions
which of the following be describes sound waves?
parameters
variations in all of the following identify specific waves as acoustic waves except for
transverse
sound waves are not?
pressure
acoustic parameters are not?
longitudinal, pressure waves
what describes sound waves?
interference
two waves are traveling in a medium and arrive at a location at the same time what event takes place?
waves of different frequency
which types of waves will exhibit both contructive and destructive interference?
pascals
what units are used to report the pressure of a sound beam?
true
true or false acoustic parameters are used to describe the features of sound waves
directly
how are scores on the ultrasound board exams related to study time?
inversely
how is weight related to a sonographers time spent exercising?
directly
how are caloric intake and weight related
0
what is the reciprocal of 1,000?
1/5
what is the reciprocal of 5?
10
what is the reciprocal of 1/10?
cubic meters
which of the following is not a measure of area?
15mm
a sonographer measures the perimeter of an anatomical structure. which of the following choices is a reasonable value for the measurement?
6 cm^3
the volume os a cystic structure is estimated from sonographic data. which of the following is an acceptable measurement of this volume?
1,000,000
how much bigger is one billion than one thousand?
how many seconds per hour and the number of miles in a centimeter
the speed of red blood cells traveling through a blood vessel is 750 cm/sec. You are asked to measure this speed in miles per hour. What information would be sufficient for you to complete your task?
by immersing it in water
how can the volume of an irregularly shaped object be measured most accurately?
all carry energy from one site to another
what is true about a wave?
light, heat, and television
which of the following types of waves do not require a medium in order to propagate ?
mechanical, longitudinal
which of the following describes characteristics of a sound wave?
a series of compressions and rarefactions
sound is best describes as
they are transverse
all of the following are true about sound waves except
transverse
the direction of motion of a particle in a wave is perpendicular to the direction of propagation of the wave. What type of wave is this?
horizontal
a particle within a transverse wave is traveling vertically. what is the direction of the waves propagation?
unrelated
two items not associated
directly related or directly proportional
two items associated; one increases so does the other
related or proportional
two items associated, no specific relationship
inversely related or inversely proportional
two items associated, when one increases the other decreases
a form of an inverse relationship; when two terms multiplied together= 1, when one term increases the other decreases
cm, feet
units of length
cm^2, ft^2
units of area
cm^3, ft^3
units of volume