A flute is a musical instrument. Sound is produced from a flute by blowing onto a sharp edge and causing the air in the air column to vibrate. The picture shows a flute.

What will most likely happen to the pitch of the flute if the air column is lengthened?
A.
The pitch will increase because the frequency of the wave will increase.

B.
The pitch will decrease because the frequency of the wave will decrease.

C.
The pitch will remain the same because the amplitude of the wave will decrease.

D.
The pitch will get louder because the amplitude of the wave will remain the same.

A. The pitch will increase because the frequency of the wave will increase.

When the air column of the flute is lengthened, the frequency of the vibrations produced will increase, resulting in a higher pitch.