Exam 1 Part 2

Question 1

What branch of science does speech science fall under?

Answer 1

Bioacoustics

Question 2

Scientific system used to quantify base unites

Answer 2

International system of units (SI)

Question 3

What are the 2 SI units currently in use?

Answer 3

MKS, CGS

Question 4

Meters-kilograms-seconds

Answer 4

MKS

Question 5

Centermeters-grams-seconds

Answer 5

CGS

Question 6

What SI unit scale is preferred?

Answer 6

MKS

Question 7

What is the medium of speech?

Answer 7

Air

Question 8

Molecules in the air that move around randomly

Answer 8

Brownian motion

Question 9

Force that acts perpendicularly on a surface

Answer 9

Pressure

Question 10

What is atmospheric pressure based on (2)?

Answer 10

Average at sea level or standard measurement

Question 11

What is Patm at sea level?

Answer 11

101.325 kPa

Question 12

What is the standard measurement of Patm?

Answer 12

100 kPa or 14.7 psi

Question 13

Higher than atmospheric pressure

Answer 13

Positive pressure

Question 14

Lower than atmospheric pressure

Answer 14

Negative pressure

Question 15

Unimpeded airflow related to vowels

Answer 15

Laminar airflow

Question 16

Disturbance of airflow from a barrier; related to consonants

Answer 16

Turbulent airflow

Question 17

With the help of differential pressure, randomly moving molecules from one area in a medium to another

Answer 17

Airflow

Question 18

As volume decreases, air pressure increases

Answer 18

Boyle’s law

Question 19

Air molecules undergo Brownian motion creating a relatively steady pressure

Answer 19

Ambient pressure

Question 20

How does sound occur?

Answer 20

Alternating increase and decrease in ambient pressure (Pam)

Question 21

Air pressure that are pushed together

Answer 21

Compression

Question 22

What is considered a compression?

Answer 22

Nodes of air molecules with increase pressure, decrease velocity

Question 23

Air pressure that is pulled apart

Answer 23

Rarefaction