When someone plays the flute, sound is produced because the air in the flute is
A B C D
hot. neutral. vibrating. vaporizing.
Question: When someone plays the flute, sound is produced because the air in the flute is
(A) hot.
(B) neutral.
(C) vibrating.
(D) vaporizing.

Answer: (C) vibrating.
Answer: (A) hot.
Question: When someone plays the flute, sound is produced because the air in the flute is
(A) hot.
(B) neutral.
(C) vibrating.
(D) vaporizing.
Answer: (C) vibrating.