The Physics of Flight: How Airplanes Defy Gravity

Airplanes fly by balancing four forces: lift, weight, thrust, and drag.
Wings are shaped to create lift by speeding up air over the top surface.
According to Bernoulli’s principle, faster airflow means lower pressure, lifting the wing.
Engines or propellers provide thrust to push the plane forward.
Drag resists motion, so streamlined designs reduce air resistance.
Flaps and slats on wings adjust lift during takeoff and landing.
Ailerons, rudders, and elevators control roll, yaw, and pitch.
Jet engines work by accelerating air and fuel to produce forward force.
Pilots constantly adjust controls to keep the forces in balance.
Flight is possible because physics turns air pressure and motion into lift.