1 ASSIGNMENT 1 Textbook assignment: Chapter 1, “Amplitude Modulation,” pages 1-1 through 1-75.   _________________________________________________________________________________ 1-1.   The action of impressing intelligence upon a transmission medium is referred to as 1.   modulating 2.   demodulating 3.   heterodyning 4.   wave generating 1-2.   You can communicate with others using which of the following transmissions mediums? 1.   Light 2.   Wire lines 3.   Radio waves 4.   Each of the above 1-3.   When you use a vector to indicate force in a diagram, what do (a) length and (b) arrowhead position indicate? 1.   (a) Magnitude (b) direction 2.   (a) Magnitude (b) frequency 3.   (a) Phase (b) frequency 4.   (a) Phase (b) direction 1-4.   Vectors are used to show which of the following characteristics of a sine wave? 1.   Fidelity 2.   Amplitude 3.   Resonance 4.   Distortion 1-5.   A rotating coil in the uniform magnetic field between two magnets produces a sine wave. It is called a sine wave because the voltage depends on which of the following factors? 1.   The number of turns in the coil 2.   The speed at which the coil is rotating 3.   The angular position of the coil in the magnetic field 4.   Each of the above 1-6.   The trigonometric relationship for the sine of an angle in a right triangle is figured using which of the following ratios? 1.   Opposite side hypotenuse 2.   Adjacent side hypotenuse 3.   Hypotenuse opposite side 4.   Hypotenuse adjacent side 1-7.   The part of a sine wave that is above the voltage reference line is referred to as the 1.   peak amplitude 2.   positive alternation 3.   negative alternation 4.   instantaneous amplitude 1-8.   The degree to which a cycle has been completed at any given instant is referred to as the 1.   phase 2.   period 3.   frequency 4.   amplitude