What occurs when a wing creates lift according to the Bernoulli principle?

When considering how lift is generated on a wing, particularly through the lens of the Bernoulli principle, it is understood that as airflow speeds up over the top of the wing, the pressure above the wing decreases. According to Bernoulli's principle, an increase in the velocity of a fluid (in this case, air) results in a reduction of pressure within that fluid.

As the airfoil shape of the wing causes the air to travel faster over the top surface than the bottom surface, this creates a pressure differential. The air moves faster over the curved upper surface, leading to lower pressure, while the air moving slower beneath the wing retains higher pressure. This pressure difference is what generates lift, allowing the aircraft to rise off the ground.

The other choices do not correctly describe the effects based on the Bernoulli principle. For example, airspeed decreasing over the wing does not align with how lift is created, as increased airflow speed is actually pivotal to reducing pressure. Likewise, temperature changes around the wing or a decrease in the overall weight of the aircraft are not direct outcomes of lift creation per the principles of aerodynamics. Hence, the decrease in pressure above the wing is the critical phenomenon driving lift as illuminated by Bernoulli's principle