Question

Mary's class is studying sound waves. Mary played two sounds on her flute. For the first sound, Mary blew gently. For the second sound, Mary blew into the flute with a lot of force. What change can you hear?

Answer 1

The second flute sound is louder than the first.

Answer 2

Answer:

When mary blew gently that time she applies low force due to which velocity of airflow inside the flute  increases gently, hence frequency or pitch of the sound is (gentle)not very high or very low.

But when When mary  blew flute with lots of force that time she applies lots of force due to which velocity of air flow inside the flute increases, hence frequency or pitch of the sound increases and we hear a loud sound.