Flying High: How Do Airplanes Stay in the Air? Test your knowledge on the principles of flight and how airplanes soar through the sky with this quiz! delya90 published on August 29 Stacked 1/11 What is the primary force that allows airplanes to stay in the air? Lift Gravity Thrust Drag 2/11 Which part of the airplane's wing is primarily responsible for generating lift? Airfoil Flaps Ailerons Fuselage 3/11 What is the purpose of the horizontal stabilizer on an airplane? Stability and control Generating thrust Reducing drag Controlling pitch 4/11 Which of the following is NOT an aerodynamic force acting on an airplane? Thrust Weight Lift Drag 5/11 What effect does increasing airspeed have on lift production? Increases lift Decreases lift Has no effect on lift Increases drag 6/11 What is the purpose of the rudder on an airplane? Controls yaw Controls pitch Controls roll Increases lift 7/11 Which of the following is NOT a type of drag that airplanes experience? Parasite drag Thrust drag Induced drag Form drag 8/11 What is the angle of attack of an airplane? The angle between the wing chord line and the relative wind The angle between the wingtips The angle of descent during landing The angle of climb during takeoff 9/11 Which of the following is responsible for providing the propulsion for an airplane? Engines Wing flaps Tail section Landing gear 10/11 What is the purpose of the dihedral angle on an airplane's wings? Increases lateral stability Reduces drag Increases lift Controls pitch 11/11 What is the function of the elevator on an airplane? Controls pitch Controls yaw Controls roll Increases lift