Which objective of a good speech introduction is fulfilled by the following statement?Today we're going to look at the three parts that go into making a skateboard-the plank, the wheels, and the "truck."

Matthew is sitting in communications class while the instructor is lecturing, but his mind keeps

wandering to his upcoming vacation. Matthew is experiencing which type of listening barrier? A) physical distractions B) mental distractions C) biases D) prejudices

Device used to increase the level or magnification of an electrical signal produced by a sound generally through the use of transistors or electron tubes, thus making the audio loud enough for projected listening.

A. Amplifier B. Phonograph C. Kinetophone D. Cardioid