What is the vertical axis of a graph called?

What is the name of the horizontal axis of a graph?

How are scores on the ultrasound board exams related to study time?

How are calorie intake and weight related?

How is weight related to a sonographers time spent exercising?

What is the reciprocal of 1,000?

What is the reciprocal of 5?

What is the reciprocal of 1/10?

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 bouquet has 30 flowers. The size of the bouquet is decreased by a factor of 3. How many flowers remain?

Which of following is not a measure of area?

A sonographer measures the perimeter of an anatomical structure. Which of the following choices is a reasonable value of the measurement?

What are the units associated with the circumference of a circle?

The volume of a cystic structure is estimated from sonographic data. Which of the following is an acceptable measurement of the volume?

The speed of red blood cells traveling through a blood vessel is 750 cm/sec. You are asked to measure the speed in miles per hour. What information would be sufficient for you to complete your task?

How much bigger is one billion than one thousand?

Select the sequence that appears in increasing order

How many nanoseconds are in 7 seconds?

The letters below represent the abbreviations for the prefixes of the metric system. Select the sequence that appears in decreasing order

Which term is the reciprocal of mega

How can the volume of an irregular shaped object be measured most accurately?

What term is used to describe the effects of an ultrasound wave on living tissues

As sound travels through a medium, what term describes the effects of the medium on the sound wave

Which of th following is true of all waves?

Which of the following describes the characteristics of a sound wave?

Sound is best described as__?

All of the following are true about sound waves except?

Sound can be characterized as:

A force is applied to a surface. If the force is tripled and the surface area over which the force is applied is also tripled, what is the new pressure?

A longitudinal wave propagates from eats to west at a speed of 2 miles per hour, what is the direction of motion of the particles within the wave?

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?

A particle within a transverse wave is traveling vertically, what is the direction of the waves propagation?

Waves that exist at the same location and time will combine, what is this called?

Two waves arrive at the same location and interfere. The resultant sound wave is smaller than either of the two original. What is this called?

A pair of waves are in phase. What occurs when these waves interfere?

What is th range of periods commonly found in waves produced by ultrasound systems?

With standard ultrasonic imaging, what happens to the period of a wave as it propagates?

What determines the period of an ultrasound wave?

True or false? The sonographer has the ability to alter the period of an ultrasound wave that is produced by a basic transducer

What term describes the number of cycles that an acoustic variable completes in a second?

Which of the following cannot be considered a unit of frequency?

What is the range of frequencies emitted by transducers used in ultrasound imaging

What establishes the frequency of an ultrasound wave?

True or false? With standard ultrasound pulses, the frequency of the ultrasound changes significantly as the wave propagates through the body ?

When a sonographer increases the maximum imaging depth during an exam, what happens to the frequency?

Ultrasound is defined as a sound with a frequency of ___

Infrasound is defined as a sound with a frequency of ___.

True or false ? Waves in the ultrasound range behave in the same general manner as sound waves that are audible?

What is the characteristic of acoustic waves with frequencies exceeding 20,000 Hz when compared with waves having frequencies of less than 20,000 Hz?

What is characteristic of acoustic waves with frequencies of less than 20 Hz when compared with waves having frequencies of more than 20 Hz?

The frequency of a continuous acoustic wave is 5 MHz . The wave is then pulsed with a duty factor of 0.1 what is the new frequency?

True or false ? The period of an ultrasound wave is related to the frequency and is the same, regardless of whether the wave is pulsed or continuous

True or false ? If the period of two waves are the same, then the frequencies of the waves must also be the same

____ is the reciprocal of period

What determines the initial amplitude of an ultrasound wave?

True or false? With standard diagnostic imaging instrumentation, the sonographer has the ability to vary the amplitude of a sound wave produced by the transducer

As an ultrasound wave travels through the body, its amplitude usually:

The power of an ultrasound wave can be reported with which of the following units?

Typically, as an ultrasound wave travels through soft tissue, the power of the wave:

True or false? A sonographer can routinely change the power of a wave emitted by a transducer used in diagnostic ultrasound imaging

Mathematically, when a number is squared, the number is multiplied by :

The final amplitude of an acoustic wave is reduced to one half of its original value. The final power is___ the original power.

The amplitude of an acoustic wave decreases from 27 pascals to 9 pascals. If the initial power in the wave was 27 watts, what is the wave’s final power?

The intensity of an ultrasound beam is defined as the ___ in a beam ___ by the ___ of the beam.

As sound travels in the body, what typically happens to the intensity of the wave?

What are the units of intensity?

True or false? With diagnostic ultrasonic imaging instruments, the operator can alter the intensity of an ultrasound beam produced by the transducer.

What determines the initial intensity of an ultrasound beam?

What determines the intensity of an ultrasound beam after it has traveled through the body?

What are the units of the transmitted intensity of a sound sound wave?

What happens when the power in an ultrasound beam is unchanged, and at the same time, the beam are doubles?

What happens to an acoustic beam’s intensity when the power in the beam increases by 25% while the cross-sectional area of the beam remains the same?

When the power in an acoustic beam is doubled and the cross-sectional area of the beam is halved, then the intensity of the beam is:

What happens to the intensity of an ultrasound beam when the beam’s cross-sectional area remains unchanged while the amplitude of the wave triples?

If the power of the beam is tripled while the cross-sectional area of the beam remains the same, the intensity___.

A sonographer adjusts the output power of the wave emitted by the transducer. Which of the following also changes?

The wavelength of a cycle of a cycle in an ultrasound wave can be reported with which units?

What is the wavelenght of 2 MHz sound in soft tissue?

Which of the following terms best describes the relationship between frequency and wavelength for sound traveling in soft tissue?

Which sound wave has a longer period?

Which pulse has a longer wavelength?

Which pulse has a lower propagation speed?