Speech and Hearing Sciences: ASLP 3030
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Sound is what kind of energy? - CORRECT ANSWER - Acoustic energy
Energy is transmitted by what type of wave? - CORRECT ANSWER - Pressure waves
What creates pressure waves? - CORRECT ANSWER - Force applied to a sound source
What is energy? - CORRECT ANSWER - Oscillating particles that travel through a
medium
Brownian Motion - CORRECT ANSWER - Constant movement of air molecules in a
random pattern
Sound cannot exist... - CORRECT ANSWER - In a vacuum
Changes in pressure are measured in - CORRECT ANSWER - Pascals (Pa)
A medium must... - CORRECT ANSWER - Have mass
Be elastic
Celerity (C) - CORRECT ANSWER - Swiftness, rapidity of motion or action
(speed/velocity)
Speed of Sound in Air - CORRECT ANSWER - 343 m/s at
20 degrees C
, Elasticity - CORRECT ANSWER - The ability of the object to return to its original form
after being stressed or compressed
Speed of Propagation - CORRECT ANSWER - Speed at which a wave moves through a
medium
The speed of propagation does what as the air gets colder? - CORRECT ANSWER -
Slows down
Supersonic - CORRECT ANSWER - Speed faster than the speed of sound
Subsonic - CORRECT ANSWER - Speed slower than the speed of sound
Range of Human Hearing - CORRECT ANSWER - 20-20,000 Hz
Ultrasound - CORRECT ANSWER - Sound energy that is too high for humans to perceive
as sound
Infrasound - CORRECT ANSWER - Sound energy below human perception
Simple Harmonic Motion (SHM) - CORRECT ANSWER - Any (repeated) periodic
motion (back and forth) with a restoring force proportional to displacement
Compression - CORRECT ANSWER - The part of a longitudinal wave where the particles
of the medium are close together
Rarefaction - CORRECT ANSWER - A part in a longitudinal wave where the particles are
spread apart
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Sound is what kind of energy? - CORRECT ANSWER - Acoustic energy
Energy is transmitted by what type of wave? - CORRECT ANSWER - Pressure waves
What creates pressure waves? - CORRECT ANSWER - Force applied to a sound source
What is energy? - CORRECT ANSWER - Oscillating particles that travel through a
medium
Brownian Motion - CORRECT ANSWER - Constant movement of air molecules in a
random pattern
Sound cannot exist... - CORRECT ANSWER - In a vacuum
Changes in pressure are measured in - CORRECT ANSWER - Pascals (Pa)
A medium must... - CORRECT ANSWER - Have mass
Be elastic
Celerity (C) - CORRECT ANSWER - Swiftness, rapidity of motion or action
(speed/velocity)
Speed of Sound in Air - CORRECT ANSWER - 343 m/s at
20 degrees C
, Elasticity - CORRECT ANSWER - The ability of the object to return to its original form
after being stressed or compressed
Speed of Propagation - CORRECT ANSWER - Speed at which a wave moves through a
medium
The speed of propagation does what as the air gets colder? - CORRECT ANSWER -
Slows down
Supersonic - CORRECT ANSWER - Speed faster than the speed of sound
Subsonic - CORRECT ANSWER - Speed slower than the speed of sound
Range of Human Hearing - CORRECT ANSWER - 20-20,000 Hz
Ultrasound - CORRECT ANSWER - Sound energy that is too high for humans to perceive
as sound
Infrasound - CORRECT ANSWER - Sound energy below human perception
Simple Harmonic Motion (SHM) - CORRECT ANSWER - Any (repeated) periodic
motion (back and forth) with a restoring force proportional to displacement
Compression - CORRECT ANSWER - The part of a longitudinal wave where the particles
of the medium are close together
Rarefaction - CORRECT ANSWER - A part in a longitudinal wave where the particles are
spread apart
