Exam 1: The Basics - Sound, Electrical Signal, Electromagnetic Spectrum

The resistance of a medium is measured in ________.

How many cycles per second are there in a frequency of 140 Hz?

________ signals are the electrical waves that are produced by a telephone transmitter and travel down telephone wires.

Sound creates a(n) ________ in the media it travels across, whether that medium is air or a copper wire.

Briefly explain how a musical note and the color green are alike.

________ (acronym) radio is a source signal that impresses itself onto a carrier wave by manipulating the amplitude of the signal.

Copper wire, air, fiber optic strands, and water are the sources of sound waves that vibrate molecules in a medium.

Which of the following terms of exponential notation represents 1,000,000,000?

Normal human speech falls within the frequency range of 20 Hz to 20,000 Hz.