Sound energy - Mechanical energy - Electrical energy - Sound energy
Explanation:
First of all, old telephone or typical telephone comes with a transmitter and receiver.
When a person speaks through a telephone, sound waves (Sound energy) created by his voice enters the mouthpiece. It then strikes the diaphragm, a round metal disk that vibrates (mechanical energy) in variation of air pressure from varying tones of the speaker. Then it travels to a small cup of tiny carbon grains. These grains produce low voltage electric current (electrical energy) that travels through the telephone wire to the receiver of another telephone. The current copies the pattern of sound waves produced by the speaker.
Answers & Comments
Answer:
Sound energy - Mechanical energy - Electrical energy - Sound energy
Explanation:
First of all, old telephone or typical telephone comes with a transmitter and receiver.
When a person speaks through a telephone, sound waves (Sound energy) created by his voice enters the mouthpiece. It then strikes the diaphragm, a round metal disk that vibrates (mechanical energy) in variation of air pressure from varying tones of the speaker. Then it travels to a small cup of tiny carbon grains. These grains produce low voltage electric current (electrical energy) that travels through the telephone wire to the receiver of another telephone. The current copies the pattern of sound waves produced by the speaker.