Aerodynamics Quiz

What is the force that causes an object moving through a fluid to generate dynamic lift?

• Gravity force

• Dynamic lift force

• Friction force

• Buoyancy force

Which type of aircraft relies on dynamic lift and cannot use the buoyancy force for lift?

• Glider

• Helicopters

• Fixed-wing aircraft

• Aerostats

What is the force that is perpendicular to the direction of the oncoming fluid when an object moves through the air?

• Centripetal force

• Aerodynamic lift force

• Tension force

• Normal force

Which principle explains the pressure difference between the top and bottom surfaces of an aerofoil when it moves through the air?

• Newton's second law

• Newton's first law

• Archimedes' principle

• Bernoulli's principle

What is the record-holding aircraft for the largest wingspan?

• Airbus A380

• North American X-15

• Hughes H4 Hercules

• Antonov An-225

What is the force that causes an aerofoil to climb into the sky?

• Gravity force

• Lift force

• Drag force

• Thrust force

Which law states that for every action, there is an equal and opposite reaction?

• Newton's first law

• Newton's second law

• Newton's third law

• Einstein's theory of relativity

What is the primary means of propulsion for helicopters?

• Wings

• Propellers

• Jet engines

• Rotors

What is the primary means of propulsion for powered fixed-wing aircraft?

• Propellers

• Wings

• Jet engines

• Rotors

What is the primary means of propulsion for gliders?

• Propellers

• Jet engines

• Rotors

• Gravity