Lift, Bernoulli's principle and Newton's laws of motion

What hidden assumption is often made when comparing pressure above and below a wing using Bernoulli's principle?

• The air density is constant.

• The Bernoulli's constant is the same for both the flow above and below the wing.

• The wing is symmetrical.

• The speed of air above and below the wing is equal.

How do Newton's laws of motion explain the generation of lift and drag on an airplane wing?

• Air accelerates over the curved top surface, creating lower pressure.

• Air hitting the angled wing is deflected downwards, resulting in an upward force (lift) and a backward force (drag) on the wing.

• The wing's shape causes air to stick to its surface, pulling it upwards.

• The difference in air temperature above and below the wing creates a buoyant force.

Which type of wing design is known for being very curved, generating significant lift, but also producing a lot of drag?

• Symmetrical wing

• Standard wing

• Deep camber wing

• Flat wing

What is a primary characteristic of a symmetrical wing design?

• It generates more lift than a deep camber wing.

• It is typically used for passenger aircraft due to its high lift.

• It provides less lift but allows for greater speed.

• Its upper surface is significantly longer than its lower surface.