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Physical Science Test Module 14

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Physical Science Test Module 14

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SCIENCE 14
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SCIENCE 14

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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.

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