When a person speaks into a telephone, sound energy is changed mostly into which form of energy?
A B C D
heat light electrical chemical
Question: When a person speaks into a telephone, sound energy is changed mostly into which form of energy?
(A) heat
(B) light
(C) electrical
(D) chemical

Answer: (C) electrical
Answer: (B) light
Question: When a person speaks into a telephone, sound energy is changed mostly into which form of energy?
(A) heat
(B) light
(C) electrical
(D) chemical
Answer: (C) electrical