Speech Science Test 1

Question 1

Definition of Acoustics

Answer 1

the study of the physics of sound

Question 2

Definition of Kinematics

Answer 2

the study of motion

Question 3

Definition of Dynamics

Answer 3

the study of the forces that causes movement

Question 4

Definition of Psychoacoustics

Answer 4

the study of the relationship between physical properties and our perception. of those properties

Question 5

Definition of Speech Production

Answer 5

the generation of airflow and the creation of air pressures by the displacement or movement of bodily structures that results in the production of linguistically meaningful sound.

Question 6

Definition of Voice Production

Answer 6

the generation of sound waves by vibration of the vocal folds which are then modified by vocal tract (don’t need to be linguistically meaningful)

Question 7

What does MKS stand for?

Answer 7

M-distance in Meters
Volume in Liters
K-mass in Kilograms
S-time in Seconds

Question 8

Definition of force

Answer 8

a push or pull on an object; movement of speech achieved by management of forces

Question 9

Definition of speed

Answer 9

distance covered in a specified period of time (speech measured in syllables/minute)

Question 10

Definition of velocity

Answer 10

the speed of something with an added notation of the direction of movement; has research purposes

ex. downward movement of the jaw

Question 11

Definition of acceleration

Answer 11

the increase in velocity in a period of time traveled (ft per second squared)

Question 12

Definition of deceleration

Answer 12

negative change in velocity

Question 13

Newton’s first law of motion

Answer 13

a moving object will continue moving in a straight line at a constant speed, a stationary object will remain at rest unless acted upon by an outside force (aka the law of intertia)

Question 14

Law of Inertia

Answer 14

an object’s tendency to resist change in motion

Question 15

Newton’s Second Law of Motion

Answer 15

when a force acts upon an object, the object accelerates in the same direction of the force

Question 16

Acceleration is ________ proportional to the net force and _________ proportional to the mass of the object

Answer 16

directly; inversely

Question 17

the greater the mass, the ______ the acceleration and the less the mass, the _______ the acceleration

Answer 17

slower; faster

Question 18

What is the unit of force?

Answer 18

Newton (N)

Question 19

Newtons third law of motion

Answer 19

for every action of force there is an equal and opposite reaction or force

Question 20

momentum

Answer 20

the strength or force that something has when it is moving, the product of mass x velocity

Question 21

definition of work

Answer 21

the measure of force exerted over some distance, the transfer of energy that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement

Question 22

What is the unit of measurement for work?

Answer 22

Joule

Question 23

definition of joule

Answer 23

amount of work done when exactly one newton of force through distance of one meter

Question 24

definition of energy

Answer 24

the ability to do work

Question 25

definition of power

Answer 25

the rate at which work is done, or at which energy is expended

Question 26

Why do SLPs need to know these energy terms and the basis of how speech works?

Answer 26

SLPs may focus their therapy on increased energy efficiency while talking, and the management of the energy in the vocal tract is critical in the therapy of voice and speech problems.

Question 27

defintion of kinetic energy

Answer 27

the type of energy that is associated with moving objects and is the most obvious form of energy, the energy of motion

Question 28

Greater mass and greater ________ mean greater kinetic energy

Answer 28

speed

Question 29

definition of potential energy

Answer 29

the energy that is waiting to be released, could be released, is going to happen in the same direction that the force was applied

Question 30

definition of stiffness

Answer 30

the degree to which an object resists being deformed

Question 31

definition of elasticity

Answer 31

the ability of an object to spring back to its resting shape when the deforming force is removed

Question 32

Hooke’s Law

Answer 32

the change in length of a material is proportional to the force applied to it

Question 33

Definition of pressure

Answer 33

pressure is the collision of molecules against the sides of a container