What does lift produce in terms of pressure on an aircraft's wing?

Lift is generated by the differences in pressure created around an aircraft's wing as it moves through the air. The design of the wing, often an airfoil shape, results in faster airflow over the top surface compared to the bottom surface. According to Bernoulli's principle, faster airflow leads to lower pressure. Therefore, there is a high pressure underneath the wing, where the airflow is slower, and a low pressure above the wing, where the airflow is faster. This pressure difference creates an upward force known as lift, which is essential for an aircraft to rise off the ground.

The choice indicating high pressure under the wing and low pressure above accurately captures this fundamental aerodynamic principle, explaining how lift is produced in relation to wing design and airflow characteristics. Understanding this concept is crucial for comprehending how aircraft maneuver and maintain altitude in flight.