COMD 5070 Exam 1 Study Guide with Complete Solutions
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Course
COMD 5070
Institution
COMD 5070
COMD 5070 Exam 1 Study Guide with
Complete Solutions
The Scientific Method is . . . - Answer️️ -empirical, deterministic,
predictive, parsimonious
Empirical - Answer️️ --based on data
-we collect data and then interpret it
-we have to make sense of the behavior that we're trying to un...
Longitudinal Wave - Answer✔️✔️--vibration of the medium is parallel to the
direction the wave travels
-local change in tension
-stretching a slinky moderately, equal tensions along slinky, then one hand
pulses in and out so wave travels along slinky because of change in tension
-in silence, all molecules equally spaced
-once sound occurs, in some regions, molecules will be pushed closer
together, in adjacent region, molecules stretched apart
-compressions and rarefactions alternate rapidly which makes the sound
Compression - Answer✔️✔️-the part of a longitudinal wave where the
particles of the medium are close together.
Rarefaction - Answer✔️✔️-the part in a longitudinal wave where the
particles are spread apart
Frequency - Answer✔️✔️--how often do the air molecules vibrate?
-how frequently does a waveform repeat itself
-Hz = cycles per second
-once per second= 1 Hz
-higher frequency = higher pitch
-we can't hear all frequencies
3
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