Lift

Question 1

Bernouli principle

Answer 1

Air flowing over the top of the airfoil flows faster than that moving underneath the airfoil causing a pressure differential and the wing wants to rise.

Question 2

Newtons third law

Answer 2

Downward and rearward force of the airflow over the top of the wind wing creates a downwash which results ins another upward force on the airfoil

Question 3

Vortices

Answer 3

High pressure air from under the wings flows to the low pressure air on the top of the wings and causes vortices that flow off the wingtips. They flow outward, upward and around the wingtips