Which theory states that as acceleration increases, pressure drops, allowing the wings to move upward on an aircraft, causing lift?

Which theory states that as acceleration increases, pressure drops, allowing the wings to move upward on an aircraft, causing lift?

• A. Dynamic lift
• B. Newton's 2nd law of motion
• C. Newton's 1st law of motion
• D. Bernoullian lift

Answer: (D)

The main idea tested is how lift is produced by the air moving over the wing. When air flows over the wing, it speeds up, especially over the curved upper surface. Faster flow means lower pressure, per Bernoulli’s principle. The pressure on the upper surface drops relative to the lower surface, creating a net upward force on the wing. That upward force is lift, which enables the aircraft to rise. The term Bernoullian lift specifically describes this relationship between faster airflow and reduced pressure that leads to lift, so it fits the description exactly. Other options point to general motion laws or vague ideas about lift, but they don’t pinpoint the mechanism of lift being driven by pressure changes from accelerated airflow over the wing.

The main idea tested is how lift is produced by the air moving over the wing. When air flows over the wing, it speeds up, especially over the curved upper surface. Faster flow means lower pressure, per Bernoulli’s principle. The pressure on the upper surface drops relative to the lower surface, creating a net upward force on the wing. That upward force is lift, which enables the aircraft to rise. The term Bernoullian lift specifically describes this relationship between faster airflow and reduced pressure that leads to lift, so it fits the description exactly.

Other options point to general motion laws or vague ideas about lift, but they don’t pinpoint the mechanism of lift being driven by pressure changes from accelerated airflow over the wing.