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Study sets matching "amplitude and intensity"

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Study sets matching "amplitude and intensity"

48 terms
Amplitude, Power, Intensity, Attenuation
The maximum variation in an acoustic v…
Amplitude is the
As sound travels, what happens to the…
Amplitude is affect by any variables i…
amplitude
measure of how much difference exists btwn the average & maxi…
decreases
pressure, density, particle motion, and temperature
The maximum variation in an acoustic v…
amplitude
Amplitude is the
measure of how much difference exists btwn the average & maxi…
21 terms
Intensity: Measures of Amplitudes
Force
Pressure
Power
JBA
requirement for sound to occur... driving force that effect adja…
force distributed over area
capacity to exert physical force... common measure of magnitude…
just barely audible ... minimum amount we can hear ... smallest for…
Force
requirement for sound to occur... driving force that effect adja…
Pressure
force distributed over area
42 terms
Decibels (Intensity and Amplitude) Math Practice
2,000 dB
50,000,000 Mw/cm^2
1,000
100 millivolts
Increasing an amplitude of 20 by 4o dB would result in an amp…
An intensity increase of 60 dB would increase 50 Mw/cm^2 to _…
Increasing 10 millivolts by 40 dB increases 10 by ________ ti…
Increasing 10 millivolts by 20 dB increases 10 to ________ mi…
2,000 dB
Increasing an amplitude of 20 by 4o dB would result in an amp…
50,000,000 Mw/cm^2
An intensity increase of 60 dB would increase 50 Mw/cm^2 to _…
22 terms
Ch. 3 Amplitude, Power, Intensity
What determines the initial amplitude…
As an ultrasound wave travels through…
Which is the following are acceptable…
The maximum value of the density of an…
the transducer
decreases
cm, atmospheres:pascals
20 lb/in squared
What determines the initial amplitude…
the transducer
As an ultrasound wave travels through…
decreases
6 terms
E-Stim parameters-Amplitude/Intensity
NMES for strength... RUSSIAN for strength
Functional E-stim
E-stim for acute pain (TENS)... E-stim fo…
E-stim for Chronic pain/noxious tens
As high as tolerated with goal of reaching 70% of Maximal Vol…
That which matches the pts functional activity
comfortable tingling or buzzing sensation
to visible strong muscle twitches. Can be very uncomfortable
NMES for strength... RUSSIAN for strength
As high as tolerated with goal of reaching 70% of Maximal Vol…
Functional E-stim
That which matches the pts functional activity
18 terms
Amplitude
Tuning fork
Amplitude as displacement
Instantaneous Amplitude
Peak Amplitude
Tuning fork passes on the energy to the air molecules, it exe…
The magnitude of a medium's displacement... Displacement... - Chan…
The magnitude of displacement, relative to the magnitude at e…
The magnitude at the point of maximum displacement relative t…
Tuning fork
Tuning fork passes on the energy to the air molecules, it exe…
Amplitude as displacement
The magnitude of a medium's displacement... Displacement... - Chan…
54 terms
Loudness and Intensity discrimination
Loudness
Is loudness more variable at or above…
Difference Limen for intensity
Weber's discoveries about JND
Subjective attribute that corresponds to intensity... -Strongly…
above
smallest change in loudness we can perceive
Discovered that JND depends on size of standard (i.e. its rel…
Loudness
Subjective attribute that corresponds to intensity... -Strongly…
Is loudness more variable at or above…
above
16 terms
COMD 5070 - Module 1 - Intensity and Loudness
Intensity
Loudness
Recruitment
Effect of Frequency on Loudness
-amplitude or "size" of a sound, aka volume level... -measured i…
-perceptual characteristic, judged by listener... -neither corre…
-an abnormally-rapid growth in perception of loudness with in…
-hearing more sensitive at some frequencies... -lowest threshold…
Intensity
-amplitude or "size" of a sound, aka volume level... -measured i…
Loudness
-perceptual characteristic, judged by listener... -neither corre…
13 terms
Sound Intensity
Intensity
Loudness
Logarithmic
Amplitude
_____________ can be measured scientifically and is objective
_____________ is the human perception of sound intensity and…
The dB scale is represented by a _______________ relationship
Intensity is directly related to the _____________ of a sound…
Intensity
_____________ can be measured scientifically and is objective
Loudness
_____________ is the human perception of sound intensity and…
27 terms
Chapter 4 Intensity
Intensity
Intensity equation
Intensity units
Peak
Concentration of the power in a beam... Key parameter for bioeff…
I (w/cm^2)= power/beam area
watts/cm^2
Maximum Value
Intensity
Concentration of the power in a beam... Key parameter for bioeff…
Intensity equation
I (w/cm^2)= power/beam area
28 terms
Intensity
amplitude
speech intensity
hearing threshold
decibel
Intensity is expressed as _________
______ __________ is measured in dB of sound pressure level
the faintest detectable sound
logarithmic scale based on power of 10
amplitude
Intensity is expressed as _________
speech intensity
______ __________ is measured in dB of sound pressure level
29 terms
Intensity and Power
intensity and power are determined by
stronger the pulser voltage
Amplitude
Intensity
sound source
the stronger the ultrasound pulse
Maximum displacement of the wave
The rate at which energy passes through a given area
intensity and power are determined by
sound source
stronger the pulser voltage
the stronger the ultrasound pulse
Intensity
Intencety
Desible
Frequency
Pitch
Sound per squair unit and how lous its played
What frequince. a sound is played to a sirton measher meant
The different levels that a sound is played and the frequenci…
How high or low a sound or vibration is played
Intencety
Sound per squair unit and how lous its played
Desible
What frequince. a sound is played to a sirton measher meant
16 terms
Intensity and Loudness 1
Intensity
Intensity
Intensity
Intensity
amplitude or 'size' of a sound
lay term:volume level
-measured in dB... -logarithmic scale
Intensity level (IL)... Sound pressure level (SPL)
Intensity
amplitude or 'size' of a sound
Intensity
lay term:volume level
Intensity and loudness 1-1
intensity
sound
loudness
effect of frequency on loudness
amplitude or size of a sound
intensity is measured with a ____________ level meter
a perceptual characteristic judged by a listener
Hearing is more sensitive at some frequencies
intensity
amplitude or size of a sound
sound
intensity is measured with a ____________ level meter
33 terms
Intensity and loudness
Amplitude
Scientifically
Objective
Amount of energy that flows through 1…
Intensity is directly related to
Intensity can be measured
Science is ....
Intensity is really
Amplitude
Intensity is directly related to
Scientifically
Intensity can be measured
9 terms
Light (Intensity and Wavelength)
Light
Intensity
Intensity
Intensity
An electromagnetic wave that travels at 299 792 458 m/s.
How bright the light is. It is determined by the amplitude of…
The taller the wave, the brighter the light is.
It is manipulated by distance.
Light
An electromagnetic wave that travels at 299 792 458 m/s.
Intensity
How bright the light is. It is determined by the amplitude of…
16 terms
Physics wave intensity and interaction
P=E/t
I=P/S
Intensity
Sound intensity level
Power = energy over time
Intensity = power/area
written as I measured as W/m2 scalar
Written as L measured in DB
P=E/t
Power = energy over time
I=P/S
Intensity = power/area
32 terms
Eu: Wave and particle motion are responsible for light and sound Eq: What are the general characteristics of waves? Answer: Frequency, period, wavelength, and amplitude.
Mechanical Wave
Medium
Crest
Trough
A wave that requires a medium through which to travel
Material through which a wave travels
Highest point of a wave
Lowest point of a wave
Mechanical Wave
A wave that requires a medium through which to travel
Medium
Material through which a wave travels
7 terms
Amplitude characteristics
What is the maximum current or voltage…
Amplitude is also known as?
How is amplitude measured when looking…
What clinical level of stimulation inv…
peak amplitude
intensity or output
by the height of the line above or below isoelectric zero
subsensory
What is the maximum current or voltage…
peak amplitude
Amplitude is also known as?
intensity or output
20 terms
Voice: Pitch, Quality, and Intensity
Pitch
Fundamental frequency
Determinants of pitch
Jitter
The perceptual correlate of frequency. It is based on the fre…
An individual's habitual or typical pitch.
Mass, tension, and elasticity. ... Higher pitch= thinner, more t…
Frequency perturbation. The variation in vocal frequency. Not…
Pitch
The perceptual correlate of frequency. It is based on the fre…
Fundamental frequency
An individual's habitual or typical pitch.
10 terms
Amplitude Research
Equal-loudness contour
Logarithms
Dynamic Range
Decibel
The never way of showing equal-loudness, that outdates the Fl…
A quantity representing the power to which a fixed # (the bas…
Maximum output signal and to rate a systems noise floor. In h…
Unit used to measure the intensity of a sound
Equal-loudness contour
The never way of showing equal-loudness, that outdates the Fl…
Logarithms
A quantity representing the power to which a fixed # (the bas…
21 terms
(10/13) Acoustic phonetics 1: Amplitude, frequency, and waves
Acoustic phonetics can verify...
Definition of SOUND
Objects moving at regular intervals of…
Vibrating objects (such as air particl…
... transcriptions
"Particles of (e.g.) air are displaced by some disturbance, a…
... vibrating
... periodic, i.e. fluctuate in a repeating pattern
Acoustic phonetics can verify...
... transcriptions
Definition of SOUND
"Particles of (e.g.) air are displaced by some disturbance, a…
25 terms
Complex tones, frequency and intensity
Complex tones
Periodic sound wave
Aperiodic
Transient
two or more frequencies combined together, most sounds in nat…
those in which the pattern of vibration repeats itself exactl…
the vibration is random and displays no repeatable pattern. c…
are very brief in their duration
Complex tones
two or more frequencies combined together, most sounds in nat…
Periodic sound wave
those in which the pattern of vibration repeats itself exactl…
7 terms
Sound Revision Mrs Deegan 7La
intensity
volume
pitch
frequency
loud or soft sounds
the intensity of the sound high, high volume or low
How high or low a sound is
the number of vibrations per second
intensity
loud or soft sounds
volume
the intensity of the sound high, high volume or low
20 terms
Loudness, intensity and decibels
The intensity of the sound is affected…
The intensity falls away rapidly as yo…
Intensity may also be described as wha…
The human ear is responsive across a v…
amplitude and frequency
distance from sound source
tiny pressure changes
microPascals
The intensity of the sound is affected…
amplitude and frequency
The intensity falls away rapidly as yo…
distance from sound source
19 terms
CLINICAL APPLICATIONS: FREQUENCY AND INTENSITY
Normative speech data
Perceptual judgments
Objective measurements
Mean Fundamental Frequency (F0)
(i.e., average values for normal speech, such as fundamental…
involve pitch and loudness.
can be made of frequency and intensity
Obtained during vowel prolongation, reading, or conversationa…
Normative speech data
(i.e., average values for normal speech, such as fundamental…
Perceptual judgments
involve pitch and loudness.
14 terms
2. Intensity
Intensity
Dynamic markings
Fixed intensity indicators
Pianissimo (pp)
Quality of sound that depends on the wave amplitude and allow…
Italian terms, letters or hairpins we use to represent intens…
These are used to indicate that the volume should be maintain…
Very soft.
Intensity
Quality of sound that depends on the wave amplitude and allow…
Dynamic markings
Italian terms, letters or hairpins we use to represent intens…
8 terms
Light and Sound
Wave
vibrations
pitch
frequency
is a disturbance that transmit energy.
are back and forth movements of an object
The highness or lowness of sound
The number of vibrations that occur during a unit of time.
Wave
is a disturbance that transmit energy.
vibrations
are back and forth movements of an object
17 terms
Chapter 18 The Electromagnetic Spectrum and Light
electromagnetic waves
electric field
magnetic field
electromagnetic radiation
a transverse wave consisting of changing electric and magneti…
in a region of space exerts electric forces on changed partic…
in a region of space produces magnetic forces
the transfer of energy by electromagnetic waves
electromagnetic waves
a transverse wave consisting of changing electric and magneti…
electric field
in a region of space exerts electric forces on changed partic…
11 terms
Intensity of Sound
When a wave travels through a medium _…
Bats detect the obstacles in their pat…
When sound travels through air, the ai…
The relation between wave velocity 'v'…
energy is transferred at a constant speed
ultrasonic waves
1. vibrate along the direction of wave propagation
V= f (wave length)
When a wave travels through a medium _…
energy is transferred at a constant speed
Bats detect the obstacles in their pat…
ultrasonic waves
42 terms
chapter 11: intensity & EM waves
what happens to light from a galaxy as…
what happens to progressive waves with…
how can distance from astronomical obj…
does intensity decrease w/ distance oc…
light dissipates meaning it gets dimmer
energy & power dissipate the energy & power transferred bec…
INTENSITY. ... if power of wave source known, *drop in brightn…
yes.... e.g. light gets dimmer, sound gets quieter.
what happens to light from a galaxy as…
light dissipates meaning it gets dimmer
what happens to progressive waves with…
energy & power dissipate the energy & power transferred bec…
23 terms
Sound
standing wave
loudness
intensity
Speed of Sound
Results from the interference (distortion, disturbance) of th…
Our individual perception of the intensity of sound - how lou…
If the amplitude is greater, this is greater - measured in de…
The wave speed in air
standing wave
Results from the interference (distortion, disturbance) of th…
loudness
Our individual perception of the intensity of sound - how lou…
30 terms
Sound
standing wave
loudness
intensity
Speed of Sound
Results from the interference (distortion, disturbance) of th…
Our individual perception of the intensity of sound - how lou…
If the amplitude is greater, this is greater - measured in de…
The wave speed in air
standing wave
Results from the interference (distortion, disturbance) of th…
loudness
Our individual perception of the intensity of sound - how lou…
10 terms
Sound Waves and the Ear
amplitude
intensity
Loudness
decibel
a sound wave with large amplitude will carry a LOUD sound
(loudness) depends on the amplitude of the sound waves. The b…
describes the way a person responds to a sound's intensity. A…
the unit used to measure loudness or intensity of a sound. No…
amplitude
a sound wave with large amplitude will carry a LOUD sound
intensity
(loudness) depends on the amplitude of the sound waves. The b…
19 terms
Unit 5: Sound and Waves
Wave Properties
Amplitude
Crest
Trough
frequency, wavelength, amplitude and period.
For a wave or vibration, the maximum displacement on either s…
The highest point of a wave
The lowest point of a wave
Wave Properties
frequency, wavelength, amplitude and period.
Amplitude
For a wave or vibration, the maximum displacement on either s…
10 terms
sbl9 - waves
wave
amplitude
wavelength
period
a method of energy transfer
The distance from the middle (undisturbed position) to the pe…
The distance between two peaks or two troughs on a wave.
The time taken for one complete wave.
wave
a method of energy transfer
amplitude
The distance from the middle (undisturbed position) to the pe…
9 terms
5070- Sound Basics- Intensity and Loudness Module 1
intensity
linear or logarithmic
loudness
loudness vs intensity
• amplitude or 'size' of a sound ... • lay term: volume level... •…
linear, can't even see the lower numbers on the scale...if yo…
• a perceptual characteristic ... • judged by a listener... • neit…
magnitude estimation
intensity
• amplitude or 'size' of a sound ... • lay term: volume level... •…
linear or logarithmic
linear, can't even see the lower numbers on the scale...if yo…
36 terms
sound and ear
wavelength
amplitude
pitch
solid
the distance from one area of sound particles to the next
how much energy sound carries causes loudness or intensity
the highness or lowness of a sound is caused by frequency
a form of matter that keeps its shape and can be broken or to…
wavelength
the distance from one area of sound particles to the next
amplitude
how much energy sound carries causes loudness or intensity
10 terms
physics x- week 9 Wave basics
Frequency
Wavelength
Amplitude
Transverse
-How many waves can pass a given point per second, measured i…
Horizontal distance between the crests or between the troughs…
-Maximum distance a wave varies from its rest position
A wave in which the vibration is at right angles to the direc…
Frequency
-How many waves can pass a given point per second, measured i…
Wavelength
Horizontal distance between the crests or between the troughs…
10 terms
Science Week 2- Waves Part II
refraction
natural light
artificial light
umbra
The change of light speed or bending of light as it enters di…
Produced without humankind. Ex: Sun, flame
Produced by humankind. Ex: light bulb, laser
The dark inner part of a shadow
refraction
The change of light speed or bending of light as it enters di…
natural light
Produced without humankind. Ex: Sun, flame
32 terms
Waves Vocabulary
Amplitude
carrier wave
compressional wave
crest
...
Amplitude
carrier wave
...
54 terms
Light and Sound
wave
vibrations
pitch
frequency
a disturbance that transmits energy.
back and forth movements of an object or medium
The highness or lowness of sound or note, related to frequency
The number of vibrations or wavelengths that occur during a u…
wave
a disturbance that transmits energy.
vibrations
back and forth movements of an object or medium
39 terms
Waves, Sound and Light
Resting position
Restoring force
Vibration
Wave
position when an object is not vibrating (aka equilibrium pos…
pushes object back into equilibrium ( makes it stand in place )
a wiggle in time (anything that switches back and forth, to a…
a wiggle in both space and time; extends from one place to an…
Resting position
position when an object is not vibrating (aka equilibrium pos…
Restoring force
pushes object back into equilibrium ( makes it stand in place )
70 terms
Intensity and Loudness Part 1 Exam 1
Intensity refers to what
If talking to people who are non-speci…
we know when adjusting the volume we a…
What unit do we use to reflect intensi…
amplitude or the size of a sound
volume because they think about the volume knob on a radio or…
the physical intensity of the sound
Decibel (dB)
Intensity refers to what
amplitude or the size of a sound
If talking to people who are non-speci…
volume because they think about the volume knob on a radio or…
38 terms
Lecture # 4 | Intensity and Magnitude
How much a certain area was shaken whe…
Describes the total amount of energy t…
The amount of shaking is usually_____…
______ reported that the ______ Negros…
Intensity
Magnitude
Stronger, epicenter, weaker
PHILVOCS, Feb. 6, 2012, 6.9, VII in Negros oriental, VI in ce…
How much a certain area was shaken whe…
Intensity
Describes the total amount of energy t…
Magnitude
75 terms
6.5 物理词汇
physical science
optics
acoustics
mechanics
n. 物理科学
n. 光学
n. 声学
n. 机械学,力学
physical science
n. 物理科学
optics
n. 光学
65 terms
Psychoacoustics test # 2
Psychoacoustics:
Threshold
Physical
Psychological
branch of psychophysics that deals with the perception of sou…
smallest amount of stimuli that produces a response.
Intensity ... Frequency
loudness... pitch
Psychoacoustics:
branch of psychophysics that deals with the perception of sou…
Threshold
smallest amount of stimuli that produces a response.
25 terms
Light and Sound - Year 9
Wave
vibrations
pitch
frequency
is a disturbance that transmit energy.
are back and forth movements of an object
The highness or lowness of sound, corresponds to frequency
The number of vibrations that occur during a unit of time, co…
Wave
is a disturbance that transmit energy.
vibrations
are back and forth movements of an object
20 terms
Waves
Symbol for wavelength
cycle
harmonic motion
pendulum
a unit of motion that repeats
motion that repeats in cycles
a device that swings back and forth due to the force of gravity
Symbol for wavelength
cycle
a unit of motion that repeats
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