Questions from Quiz 4

Question 1

The Bernoulli principle plays a active role in producing which sets of sounds. (Two correct answers.)

a) [æ, m]
b) [ɯ, ʂ]
c) [l, u]
d) [ɬ, n]

Answer 1

a) [æ, m]
c) [l, u]
*applies to voiced sounds

Question 2

In which set, all of the sounds require the subglottal pressure to be higher than the supra-glottal pressure? (Two correct answers.)

a) [ɛ, ɓ]
b) [m, u]
c) [ʘ, k’]
d) [s, !]

Answer 2

a) [ɛ, ɓ]
b) [m, u]

Question 3

Assuming that the atmospheric pressure is 1033 cm H2O, which of the following scenario is ideal for creating voicing of the vocal folds? (One correct answer.)

a) sub-glottal pressure of 1130
b) sub-glottal pressure of 1031
c) sub-glottal pressure of 5500
d) sub-glottal pressure of 1036

Answer 3

d) sub-glottal pressure of 1036

Question 4

Which of the following is true about logitudinal waves? (Two correct answers.)

a) In longitudinal waves, particles of the medium move parallel to the direction of wave propagation.
b) It is not possible to calculate period from longitudinal waves.
c) In longitudinal waves, the particles of the medium move perpendicular to the wave direction.
d) It is possible for longitudinal waves to have the property of wavelength.

Answer 4

a) In longitudinal waves, particles of the medium move parallel to the direction of wave propagation.
d) It is possible for longitudinal waves to have the property of wavelength.

Question 5

Emma is trying to artificially generate a wave with a frequency of 500 Hz. Which of the following is true about the wave? (One correct answer.)

Two full oscillations of the wave will take:

a) 20 milliseconds
b) 2 milliseconds
c) 10 milliseconds
d) 4 milliseconds

Answer 5

d) 4 milliseconds

Question 6

Refer to the four waves below. Which one is true? (One correct answer.)

a) C has the lowest frequency among the four
b) A and D has the same frequency
c) A is higher in frequency than B
d) B is higher in frequency than C

Answer 6

b) A and D has the same frequency