Vocabulary
digital signal, analog signal, distortion, analog FM signal, analog AM signal, radio waves, pulse, noise, optic fiber cables, binary signals, protocol,, electromagnetic wave, longitudinal wave, mechanical wave, transverse wave, light, electromagnetic waves, refraction, refractive index, angle of incidence, angle of refraction, emitters, sensors, limit angle of incidence, total internal reflection, light, color, wavelength, reflection, transmission, absorption, thermal energy, electromagnetic spectrum, sound waves, mechanical waves, matter, refraction, reflection, diffraction, absorption, medium, longitudinal wave, wave, frequency, amplitude, wavelength, transverse waves, oscillations, surface waves, longitudinal waves, crest, energy, matter,, medium, liquid, solid, gas, amplitude, frequency, wavelength, wavelength, amplitude, pulse, crest, trough, negative amplitude, positive amplitude, electromagnetic waves, sound waves, emit, transmit, redirect , reflect, refract, waves, sound waves, frequency, amplitude, wavelength, hertz, crest, transverse, longitudinal, surface, SI units, proportional, energy, oscillation