Physical Science Test Module 14
Transverse wave - answers-A wave with a direction of propagation that is perpendicular to its direction of
oscillation
Longitudinal wave - answers-A wave with direction of propagation that is parallel to its direction of
oscillation.
Supersonic speed - answers-Any speed that is faster than the speed of sound in the substance of
interest.
Sonic Boom - answers-The sound produced as a result of an object traveling at or above Mach 1
Pitch - answers-An indication of how high or low a sound is, which is primarily determined by the
frequency of the sound wave.
What are the parts of a wave? - answers-The crest, trough, and amplitude.
Do sound waves oscillate parallel to or perpendicular to the direction in which the wave travels? -
answers-Parallel.
A longitudinal wave is suddenly stretched so that its wavelength is increased. If the speed of the wave
does not change, what will happen to the wave's frequency? - answers-The frequency is decreased.
NOTE TO SELF: WAVELENGTH AND FREQUENCY ARE INVERSELY PROPORSONAL.
Which waves have the longest wavelength: sonic waves, infrasonic waves, or ultrasonic waves? -
answers-Infrasonic waves.
Transverse wave - answers-A wave with a direction of propagation that is perpendicular to its direction of
oscillation
Longitudinal wave - answers-A wave with direction of propagation that is parallel to its direction of
oscillation.
Supersonic speed - answers-Any speed that is faster than the speed of sound in the substance of
interest.
Sonic Boom - answers-The sound produced as a result of an object traveling at or above Mach 1
Pitch - answers-An indication of how high or low a sound is, which is primarily determined by the
frequency of the sound wave.
What are the parts of a wave? - answers-The crest, trough, and amplitude.
Do sound waves oscillate parallel to or perpendicular to the direction in which the wave travels? -
answers-Parallel.
A longitudinal wave is suddenly stretched so that its wavelength is increased. If the speed of the wave
does not change, what will happen to the wave's frequency? - answers-The frequency is decreased.
NOTE TO SELF: WAVELENGTH AND FREQUENCY ARE INVERSELY PROPORSONAL.
Which waves have the longest wavelength: sonic waves, infrasonic waves, or ultrasonic waves? -
answers-Infrasonic waves.
