Resonance results when a vibrating body:
a. continues to vibrate after the stimulus is removed.
b. produces vibrato.
c. adds to the original harmonics of a sound source.
d. with the same natural frequencies as another body forces the second to vibrate.
D
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In an introduction, proximity refers to
a. how close the speaker is to the audience. b. the currency of the information. c. the degree to which the audience trusts the speaker. d. the degree to which the information directly affects the audience.
The nonverbal characteristics of an instructor's immediacy in
the classroom include all of the following behaviors except: a. consistent and direct eye contact. b. smiling at students. c. appropriate and natural body movement and gestures. d. vocal inflection and variety. e. avoiding physical closeness to students.