Ultrasound Physics Exam Review-
Edelman
Which term is the reciprocal of mega?
A. nano
B. kilo
C. macro
D. micro - CORRECT ANSWER-d. micro
How can the volume of an irregularly shaped object be measured most accurately?
A. by visual inspection
B. by its weight
C. by immersing it in water
D. by ultrasound scanning - CORRECT ANSWER-c. by immersing it in water- the
volume of any object can be accurately measured by immersing it in water to measuring
the volume of water displaced
SOUND WAVES QUESTIONS-
What term is used to describe the effects of an ultrasound wave on living tissues?
A. toxic effects
B. acoustic propagation properties
C. biological effects
D. transmission properties - CORRECT ANSWER-c. The effects of ultrasound on the
tissues are called biological effects or bioeffects. There have been no confirm bioeffects
on humans with acoustic intensities typical of those used in diagnostic imaging.
How is weight related to a sonographer's time spent exercising?
A. inversely
B. conversely
C. directly
D. unrelated - CORRECT ANSWER-a. inversely- as exercise increases, weight
decreases
What is the reciprocal of 1,000?
A. one-hundredth
B. 1,000
C. 0.001
D. one-millionth - CORRECT ANSWER-c. a pair of reciprocal numbers, when multiplied
together, have a value of 1. Thus, 1,000 x 0.001 = 1
,What is the reciprocal of 5?
A. one-hundredth
B. 5
C. 1/5
D. one-millionth - CORRECT ANSWER-c. a pair of reciprocal numbers, when multiplied
together, have a value of 1. Thus, 1/5 x 5 = 1
What is the reciprocal of 1/10
A. one-hundredth
B. 10
C. 1/10
D. one-millionth - CORRECT ANSWER-b. a pair of reciprocal numbers, when multiplied
together, have a value of 1. Thus, 10 x 1/10 = 1
A sack contains 6 pounds of flour. The contents of the bag are increased by a factor of
5. How much flour is in the bag?
A. 6 pounds
B. 11 pounds
C. 60 pounds
D. 30 pounds - CORRECT ANSWER-d. The term "increase by a factor" means to
multiply. Thus, 6 x 5 = 30 (add units) lbs
A bouquet has 30 flowers. The size of the bouquet is decreased by a factor of 3. How
many flowers remain?
A. 27
B. 0
C. 10
D. 15 - CORRECT ANSWER-c. the term "decrease by a factor" means to divide. Thus,
= 10 flowers remaining
Which of the following is NOT a measure of area?
A. squared cm
B. meters squared
C. cubic meters
D. feet x feet - CORRECT ANSWER-c. cubic meters are not used to measure area;
they are used to measure volume. An area is measured in units of distance squared.
For example, a rectangle's area is its length multiplied by its width, and can be reported
in square feet, in2, or square miles.
A sonographer measures the perimeter of an anatomical structure. Which of the
following choices is a reasonable value for the measurement?
A. 6 cm^2
B. 5 cc
C. 15 mm
,D. 18 dB - CORRECT ANSWER-c. "perimeter" means the length of the outer boundary
of a structure. for example, a square with an edge that is 5 inches long will have a
perimeter measuring 20 inches (four sides, each with a length of 5 inches).
What is the vertical axis of a graph called?
A. z-axis
B. x-axis
C. y-axis
D. time-axis - CORRECT ANSWER-c. the vertical axis of a graph is called the y-axis
and extends up and down.
What is the name of the horizontal axis of a graph?
A. z-axis
B. x-axis
C. y-axis
D. red axis - CORRECT ANSWER-B. the horizontal axis of a graph is the x-axis. The x-
axis extends side to side.
How are scores on the ultrasound board exams related to study time?
A. inversely
B. conversely
C. directly
D. unrelated - CORRECT ANSWER-c. directly- as study time increases, your exam
score should increase
How are caloric intake and weight related?
A. inversely
B. partially
C. reciprocally
D. directly - CORRECT ANSWER-d. directly related- as food intake increases, weight
increases
What are the units associated with the circumference of a circle?
A. mm
B. mm^2
C. cm^3
D. m^4 - CORRECT ANSWER-a. the circumference of a circle is the length of the
circle's outer boundary and is measured in units of length. b and c are units of area and
volume. d has units of length to the fourth power, which has no meaning in geometry
The volume of a cystic structure is estimated from sonographic data. Which of the
following is an acceptable measurement of this volume?
A. 6
, B. 6 cm
C. 6 cm^2
D. 6 cm^3 - CORRECT ANSWER-d. the units of volume are length cubed, such as ft3
or cubic centimeters. volume may also be expressed as length to the third power. "a"
has no units, whereas b and c have units of length and area.
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?
A. how many seconds in a minute and how many blood cells in the vessel
B. the number of miles in a meter
C. how many seconds per hour and the number of miles in a centimeter
D. the direction of red blood cell motion and the Doppler shift frequency - CORRECT
ANSWER-c. To convert one unit to another requires a factor that relates the two terms.
For example, to change a measurement of length from feet to inches, we must know
how many inches are in a foot. In this case, we are asked to convert centimeters per
second into miles per hour. Therefore, we require two pieces of information: the
relationship between seconds and hours (relating one unit of time to another) and the
relationship between miles and centimeters (relating one unit of distance to another).
When units are changed, the actual amount does not change. For example, ten dimes
provide the same purchasing power as four quarters. The units may be different, but the
"total picture" remains the same.
How much bigger is one billion than one thousand?
A. 1,000 times
B. 1,000,000 times
C. 10 times
D. 10,000 times - CORRECT ANSWER-b. 1 billion is 1 million times larger than 1000. 1
million is 1,000,000.
THE METRIC SYSTEM QUESTIONS-
Select the sequence that appears in increasing order
A. mega, kilo, hecto, milli, giga
B. nano, milli, micro, deci, deca, mega
C. centi, deci, deca, hecto
D. milli, hecto, centi, deci, nano, giga - CORRECT ANSWER-c. centi, deci, deca, hecto
How many nanoseconds are in 7 seconds?
A. 7,000,000
B. 7,000,000,000
C. 7 million
D. 0.00000007 - CORRECT ANSWER-b. Nano means billionths. There are 1 billion
billionths in one second. Therefore, there are 7 billion billionths in seven seconds.
Edelman
Which term is the reciprocal of mega?
A. nano
B. kilo
C. macro
D. micro - CORRECT ANSWER-d. micro
How can the volume of an irregularly shaped object be measured most accurately?
A. by visual inspection
B. by its weight
C. by immersing it in water
D. by ultrasound scanning - CORRECT ANSWER-c. by immersing it in water- the
volume of any object can be accurately measured by immersing it in water to measuring
the volume of water displaced
SOUND WAVES QUESTIONS-
What term is used to describe the effects of an ultrasound wave on living tissues?
A. toxic effects
B. acoustic propagation properties
C. biological effects
D. transmission properties - CORRECT ANSWER-c. The effects of ultrasound on the
tissues are called biological effects or bioeffects. There have been no confirm bioeffects
on humans with acoustic intensities typical of those used in diagnostic imaging.
How is weight related to a sonographer's time spent exercising?
A. inversely
B. conversely
C. directly
D. unrelated - CORRECT ANSWER-a. inversely- as exercise increases, weight
decreases
What is the reciprocal of 1,000?
A. one-hundredth
B. 1,000
C. 0.001
D. one-millionth - CORRECT ANSWER-c. a pair of reciprocal numbers, when multiplied
together, have a value of 1. Thus, 1,000 x 0.001 = 1
,What is the reciprocal of 5?
A. one-hundredth
B. 5
C. 1/5
D. one-millionth - CORRECT ANSWER-c. a pair of reciprocal numbers, when multiplied
together, have a value of 1. Thus, 1/5 x 5 = 1
What is the reciprocal of 1/10
A. one-hundredth
B. 10
C. 1/10
D. one-millionth - CORRECT ANSWER-b. a pair of reciprocal numbers, when multiplied
together, have a value of 1. Thus, 10 x 1/10 = 1
A sack contains 6 pounds of flour. The contents of the bag are increased by a factor of
5. How much flour is in the bag?
A. 6 pounds
B. 11 pounds
C. 60 pounds
D. 30 pounds - CORRECT ANSWER-d. The term "increase by a factor" means to
multiply. Thus, 6 x 5 = 30 (add units) lbs
A bouquet has 30 flowers. The size of the bouquet is decreased by a factor of 3. How
many flowers remain?
A. 27
B. 0
C. 10
D. 15 - CORRECT ANSWER-c. the term "decrease by a factor" means to divide. Thus,
= 10 flowers remaining
Which of the following is NOT a measure of area?
A. squared cm
B. meters squared
C. cubic meters
D. feet x feet - CORRECT ANSWER-c. cubic meters are not used to measure area;
they are used to measure volume. An area is measured in units of distance squared.
For example, a rectangle's area is its length multiplied by its width, and can be reported
in square feet, in2, or square miles.
A sonographer measures the perimeter of an anatomical structure. Which of the
following choices is a reasonable value for the measurement?
A. 6 cm^2
B. 5 cc
C. 15 mm
,D. 18 dB - CORRECT ANSWER-c. "perimeter" means the length of the outer boundary
of a structure. for example, a square with an edge that is 5 inches long will have a
perimeter measuring 20 inches (four sides, each with a length of 5 inches).
What is the vertical axis of a graph called?
A. z-axis
B. x-axis
C. y-axis
D. time-axis - CORRECT ANSWER-c. the vertical axis of a graph is called the y-axis
and extends up and down.
What is the name of the horizontal axis of a graph?
A. z-axis
B. x-axis
C. y-axis
D. red axis - CORRECT ANSWER-B. the horizontal axis of a graph is the x-axis. The x-
axis extends side to side.
How are scores on the ultrasound board exams related to study time?
A. inversely
B. conversely
C. directly
D. unrelated - CORRECT ANSWER-c. directly- as study time increases, your exam
score should increase
How are caloric intake and weight related?
A. inversely
B. partially
C. reciprocally
D. directly - CORRECT ANSWER-d. directly related- as food intake increases, weight
increases
What are the units associated with the circumference of a circle?
A. mm
B. mm^2
C. cm^3
D. m^4 - CORRECT ANSWER-a. the circumference of a circle is the length of the
circle's outer boundary and is measured in units of length. b and c are units of area and
volume. d has units of length to the fourth power, which has no meaning in geometry
The volume of a cystic structure is estimated from sonographic data. Which of the
following is an acceptable measurement of this volume?
A. 6
, B. 6 cm
C. 6 cm^2
D. 6 cm^3 - CORRECT ANSWER-d. the units of volume are length cubed, such as ft3
or cubic centimeters. volume may also be expressed as length to the third power. "a"
has no units, whereas b and c have units of length and area.
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?
A. how many seconds in a minute and how many blood cells in the vessel
B. the number of miles in a meter
C. how many seconds per hour and the number of miles in a centimeter
D. the direction of red blood cell motion and the Doppler shift frequency - CORRECT
ANSWER-c. To convert one unit to another requires a factor that relates the two terms.
For example, to change a measurement of length from feet to inches, we must know
how many inches are in a foot. In this case, we are asked to convert centimeters per
second into miles per hour. Therefore, we require two pieces of information: the
relationship between seconds and hours (relating one unit of time to another) and the
relationship between miles and centimeters (relating one unit of distance to another).
When units are changed, the actual amount does not change. For example, ten dimes
provide the same purchasing power as four quarters. The units may be different, but the
"total picture" remains the same.
How much bigger is one billion than one thousand?
A. 1,000 times
B. 1,000,000 times
C. 10 times
D. 10,000 times - CORRECT ANSWER-b. 1 billion is 1 million times larger than 1000. 1
million is 1,000,000.
THE METRIC SYSTEM QUESTIONS-
Select the sequence that appears in increasing order
A. mega, kilo, hecto, milli, giga
B. nano, milli, micro, deci, deca, mega
C. centi, deci, deca, hecto
D. milli, hecto, centi, deci, nano, giga - CORRECT ANSWER-c. centi, deci, deca, hecto
How many nanoseconds are in 7 seconds?
A. 7,000,000
B. 7,000,000,000
C. 7 million
D. 0.00000007 - CORRECT ANSWER-b. Nano means billionths. There are 1 billion
billionths in one second. Therefore, there are 7 billion billionths in seven seconds.
