Chapter 2 Flashcards
Will have to look at chapter to review question 1-4
What do waves transfer from one location to another?
A. matter
B. molecules
C. energy
D. water
C. Waves carry energy from place to place.
Which of the following best describes sound waves?
A. a series of compressions and rarefactions
B. waves that are heard by man
C. movement of molecules and energy from one location to another
D. waves that are used to make images of anatomy
A. sound waves are a series of compressions and rarefactions
Which of the following terms does not belong with the others?
A. compression
B. region of high density
C. region of high pressure
D. wide molecular spacing
D
Variations in all of the following identify specific waves as acoustic waves except:
A. pressure
B. parameters
C. density
D acoustic variables
B
All of the following are true of sound waves except:
A the are acoustic
B. they are pressure waves
C. they are transvers
D. they move energy
C. Sound waves are longitudinal, not transverse.
All of the following are acoustic parameters except:
A. pressure
B. period
C. propagation speed
D. frequency
A. Pressure is an acoustic variable not a parameter
Which of the following best describes sound waves?
A. transverse, pressure waves
B. transvers, longitudinal waves
C. longitudinal, out-of-phase waves
D. longitudinal, pressure waves
D
Two waves are traveling in a medium and arrive at a location at the same time. What event takes place?
A. constructive interference
B. destructive interference
C. interference
D. reflection
C. Both constructive and destructive interference occurs with waves with different frequencies.
What units are used to report the pressure of sound beam?
A. pounds
B. centimeters
C. pascals
D. kg/cm
C. Pressure is appropriately reported with units of pascals, abbreviated Pa.
True of False? Acoustic variables allow us to determine which waves are sound waves and which are not.
True
