Chapter 2 - Sound Flashcards

1
Q

Acoustic Variables

A

Pressure
Density
Distance (particle motion)
Temperature

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2
Q

Pressure

A

Concentration of force within an area

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3
Q

Density

A

Concentration of mass within a volume

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4
Q

Distance

A

Measure of particle motion

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5
Q

Temperature

A

Measurement of heat

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6
Q

Period

A

The time required to complete a single cycle

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7
Q

Frequency

A

cycles that occur in 1 second

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8
Q

Ultrasound

Hz measurement

A

<20000Hz

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9
Q

Audible sound

Hz Measurenent

A

20Hz-20000Hz

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10
Q

Infrasound

Hz measurement

A

<20Hz

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11
Q

Frequency & period equation

A

Period = 1/frequency
Frequency = 1/period
Triangle

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12
Q

Bigness parameters

A

Amplitude
Power
Intensity

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13
Q

Amplitude

A

Maximum variatition in a acoustic variable

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14
Q

Power

A

Rate of energy transference

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15
Q

Intensity

A

Concentration of energy in a sound beam

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16
Q

Intensity equation

A

Intensity = power/beam area

17
Q

Wavelength

A

The distance of a single cycle

18
Q

Propitiation speed

A

The rate that sound travels through a medium

Also called velocity or speed

19
Q

Interference

A

When two waves overlap at the same location at the same instant in time

20
Q

Constructive interference

A

Add two waves together

21
Q

Destructive interference

A

Subtract waves from each other