Explain the conversion of acoustic energy to electrical energy and back to acoustic energy.

Explanation should include

• the use of a transducer (i.e., microphone, a guitar pickup)
• amplification of microphones and musical instruments
• storage of electrical information that represents sound
• playback using a transducer (i.e., speaker, headphones).

Process/Skill Questions:

• How does a microphone work? What is the principle of capacitance?
• How do headphones convert electrical energy into mechanical wave energy?
• What causes distortion of sound when using transducers (i.e., headphones, microphones)?