Loudspeakers & Microphones

• What effects do loudspeakers use to convert electrical signals into vibrations

  Motor effect
• What effect do microphones use to convert the vibrations caused by sound waves into electrical signals

  Generator effect
• For microphones and loudspeakers, are the electrical signals involved direct or alternating currents?

  Alternating currents
• What two features of sound waves hitting a microphones diaphragm determine the frequency and amplitude of the current produced

  The frequency and amplitude of the sound waves determine the frequency and amplitude of the current produced