Physical (aircraft) changes during take off
Not sure if this is the right section but thought I would try as I can't find an answer anywhere else.
I am a teacher, not a pilot but was wondering if anyone had the technical knowledge of aircraft to answer a question I have.
In my lessons we are learning about the property of flight and have covered the science behind how an airline takes off with airflow etc over the wings. However, we have become stuck on what actually changes on the aircraft when a plane reaches a speed where the plane is rotated. We have visited our city's domestic and international ariport which has excellent viewing areas and watched planes land and take off and we were unable to notice anything that changes at rotation. We are specifically talking Boeing / Airbus planes ie A320, 737, 767 etc.
Firstly, does a pilot pull back the yoke or side stick and if so what does this actually do to change the angle of attack on the wings and make the aircraft airborne?
Thank you for any comments that will help my classroom.