Hearing exam 1
✅
Sound- A vibratory energy transmitted by pressure waves through a
media (like air)
Hearing-✅The perception of sound
Frequency tells us…-✅What and where and pitch
Amplitude tells us…-✅location
Phase tells us-✅Location
Spectrum tells us…-✅*Location
Time-✅How the vibrations change over time
Frequency-✅The rate, or frequency, of vibrations (how often it repeats)
Amplitude-✅The magnitude, or amplitude, of a vibration (how much
energy is in the signal)
Time uses what units?- ✅Seconds (s)
Milliseconds (ms)
Microseconds (µsec)
Frequency uses what units?- ✅Hertz (Hz)
Kilohertz (kHz)
Megahertz (MHz)
Gigahertz (GHz)
Amplitude uses what units?- ✅DB (db) decibels
What are the three fundamental dimensions of sound?- ✅Mass, TIme,
length
, ✅
Scalar quantity- Has magnitude
Ex) mass, time, & length
✅
Vector quantities- Has magnitude AND direction
Ex) displacement, velocity, acceleration, force, work, energy, momentum,
power, intensity, pressure
Energy- ✅Has the potential for work. Is something a body posses
3 forms of energy-✅Potential, kinetic and total
Power-✅Rate at which work is accomplished
OR
Rate at which energy is expended, transformed, or transferred
In order for sound to move it must have…-✅Mass and elasticity
Harmonic motion- ✅A mechanical disturbance that is propagated through
an elastic medium
✅
Simple harmonic motion- Simple Harmonic Motion: an object moving in a
harmonic motion, then changes in displacement, velocity & acceleration,
creating a sinusoidal motion
✅
Transverse wave motion- A displacement of the medium where a wave
travels that is PERPENDICULAR to the direction of the wave propagation
Longitudinal Wave Motion- ✅Particle displacement is PARALLEL to the
wave of propagation.
Sounds are what types of waves?- ✅Longitudinal pressure waves
Condensation- ✅Compression of a medium
✅
Sound- A vibratory energy transmitted by pressure waves through a
media (like air)
Hearing-✅The perception of sound
Frequency tells us…-✅What and where and pitch
Amplitude tells us…-✅location
Phase tells us-✅Location
Spectrum tells us…-✅*Location
Time-✅How the vibrations change over time
Frequency-✅The rate, or frequency, of vibrations (how often it repeats)
Amplitude-✅The magnitude, or amplitude, of a vibration (how much
energy is in the signal)
Time uses what units?- ✅Seconds (s)
Milliseconds (ms)
Microseconds (µsec)
Frequency uses what units?- ✅Hertz (Hz)
Kilohertz (kHz)
Megahertz (MHz)
Gigahertz (GHz)
Amplitude uses what units?- ✅DB (db) decibels
What are the three fundamental dimensions of sound?- ✅Mass, TIme,
length
, ✅
Scalar quantity- Has magnitude
Ex) mass, time, & length
✅
Vector quantities- Has magnitude AND direction
Ex) displacement, velocity, acceleration, force, work, energy, momentum,
power, intensity, pressure
Energy- ✅Has the potential for work. Is something a body posses
3 forms of energy-✅Potential, kinetic and total
Power-✅Rate at which work is accomplished
OR
Rate at which energy is expended, transformed, or transferred
In order for sound to move it must have…-✅Mass and elasticity
Harmonic motion- ✅A mechanical disturbance that is propagated through
an elastic medium
✅
Simple harmonic motion- Simple Harmonic Motion: an object moving in a
harmonic motion, then changes in displacement, velocity & acceleration,
creating a sinusoidal motion
✅
Transverse wave motion- A displacement of the medium where a wave
travels that is PERPENDICULAR to the direction of the wave propagation
Longitudinal Wave Motion- ✅Particle displacement is PARALLEL to the
wave of propagation.
Sounds are what types of waves?- ✅Longitudinal pressure waves
Condensation- ✅Compression of a medium
