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SLP 305 > Chapter 1 > Flashcards

Chapter 1 Flashcards

1
Q

The ability to do work; measured in joules or newton-meter

A

Energy

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2
Q

Study of sound

A

Acoustics

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3
Q

Includes density and elasticity

A

Mass

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4
Q

How close molecules are

A

Density

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5
Q

Stiffness

A

Elasticity

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6
Q

rate/movement (meters/ second)

A

Velocity

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7
Q

how far an object moves in a given direction in a stated amount of time

A

Velocity

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8
Q

What are the 3 opposing forces that affect motion?

A

Friction, inertia, Elasticity

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9
Q

force that resists the movement of an object

A

Friction

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10
Q

a body at rest remains at rest and a body in motion remains in motion

A

Intertia

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11
Q

force related to springiness, the tendency of an object to snap back to its original shape

A

Elasticity

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12
Q

the random & three-dimensional motion of air molecules when 
there is no sound forcing them to vibrate

A

Brownian motion

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13
Q

Form of energy that needs a medium that has mass and stiffness; can be generated and transmitted in or through any medium

A

Sound

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14
Q

Areas in the wave where the air molecules are pushed close together 
and so at a slightly higher pressure

A

Compression

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15
Q

What happens to the air molecules as density increases?

A

Become closer together

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16
Q

Areas in the wave where the air molecules are further apart and so at a slightly lower pressure

A

Rarefaction

17
Q
  • the rate of sound vibration (1 compression + 1 rarefaction)
  • how many times the speaker cone in and out in one second
  • how many cycles occurred in one second
A

Frequency

18
Q

What is the unit of frequency

A

cps or Hz

19
Q

What happens to the pitch of sound as frequency increases?

A

Pitch is higher

20
Q

What is the frequency of females, males, and children’s voices?

A

200 hz, 100 hz, 300 hz

21
Q

What is the human frequency detection?

A

20 Hz to 20,000 Hz

22
Q

The magnitude of vibration, which is related to loudness of sound

A

Intensity

23
Q

What is the unit for intensity?

A

dB (decibels)

24
Q

A graph to depict the threshold of each ear as a function of frequency and intensity

A

Audiogram

SLP 305 (12 decks)

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