ON THE RISE
Which of the following is NOT used to describe a wave?
Wavelength
Amplitude
Phase
Slope
Amplitude
Period
What is:
Slope
Dr Hite says the speed of sound through air during typical conditions is ____________
340 meters per second
____________ a point along a medium where there is no displacement.
node
When the movement of the particles’ vibration is parallel to the direction of the wave propagation, it is called a
What is: Longitudinal Wave
Which characteristic of sound differentiates a shrill or sharp sound from a dull or grave sound?
Pitch
All the Doctors now agree on the topic of density, so in hot, humid air _____________.
What is: Sound will move faster because the humidity makes the air more dense.
Three things that directly affect sound waves?
a. humidity, amplitude & displacement
b. frequency, distance & inversion
c. power, pressure & impedance
d. amplitude, wavelength & frequency
What is:
d. amplitude, wavelength & frequency.
What is the equation for the following:
Density
Speed of Sound
Density = M/V
Speed of Sound = F x λ
The characteristic “peaks and valleys” of a sound wave are called
What is: Compression & Rarefaction
According to Dr Hite there are 3 basic properties that affect sound.
a. Frequency, pitch & amplitude
b. Temperature, pressure & stiffness
c. Mass, stiffness & inertia/restorative force
d. Frequency, mass & stiffness
What is:
c. Mass, Stiffness & Inertia/Restorative Force
Which of the following is true regarding the relationship between elasticity and the pitch?
A. More elasticity results in a higher pitch sound
B. Less elasticity leads to a higher pitch sound
C. More elasticity results in a lower pitch sound
D. Elasticity does not affect the pitch of sound
What is:
C. More elasticity results in a lower pitch sound
Which of the following forces are responsible for causing vibration or oscillation of a medium?
A. Inertial force and gravitational force
B. Inertial force and frictional force
C. Restorative force and magnetic force
D. Inertial force and restorative force
D. Inertial force and restorative force
How does the stiffness of a medium/ moving body relate to the pitch of sound?
A. Greater stiffness results in a lower pitch sound
B. Greater stiffness results in a higher pitch sound
C. Less stiffness results in a higher pitch sound
D. Stiffness has no effect on pitch
B. Greater stiffness results in a higher pitch sound
Dr. Hite says, these are the main types of soundwave shapes.
a) square wave, sawtooth wave, perpendicular wave & rectangular wave
b) oscillating wave, parallel wave, perpendicular wave & propagational wave
c) sine wave, square wave, triangle wave, and sawtooth wave
d) periodic wave, systemic wave, aperiodic & interval wave
What is: a sine wave, square wave, triangle wave, and sawtooth wave
Which of these statements best describes the tonotopic arrangement of the cochlea?
A. The cochlea processes all frequencies equally across all its surface area.
B. High frequency sounds are processed at the apex of the cochlea, and low frequency sounds are processed at the base.
C. High frequency sounds are processed at the base of the cochlea, and low frequency sounds are processed at the apex.
D. The cochlea does not have a tonotopic organization; it processes sounds based on intensity instead of frequency.
High frequency sounds are processed at the base of the cochlea, and low frequency sounds are processed at the apex.
What is the definition or way to describe a square wave?
a) 7.07 x 1/F
b) F0 reduced by 1/N at each odd harmonic of F0
c) 16.61 x Log (x2)
d) F0
F 0, power is reduced by 1/n at each
even and odd harmonic of F 0
What is:
B. The Fundamental Frequency (F0) power is reduced by 1/n at each odd harmonic of F0