Lift or Drag? The Physics of Flight Quiz

Estimated Completion Time
2 min
Lift or Drag? The Physics of Flight Quiz
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About This Quiz

Long before the Wright brothers guided their fixed-wing aircraft over the North Carolina dunes, daredevils and engineers worked to decode the secrets of sustained heavier-than-air human flight. What do you know about the physics of flight?
Which of the following is NOT a force acting on airplanes?
drag
lift
mass
What part of an airplane is responsible for creating thrust?
aileron
engine
rudder
Which force acts in the opposite direction of thrust?
drag
lift
weight

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What part of an airplane is responsible for creating lift?
elevator
riser
wings
What's the scientific name for a wing?
aileron
airfoil
appendage
Which well-known scientific principle describing the pressure of moving fluids is often invoked when discussing how an airplane generates lift?
Archimedes' principle
Bernoulli's principle
Boyle's law

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What controversial book, first published in 2001, rejects the conventional wisdom about airplane wings and lift?
"Falling Up"
"Understanding Flight"
"Wright and Wrong"
A different, more modern view of airplane flight relies on another famous scientific principle. Which one?
Darwin's theory of natural selection
Einstein's theory of relativity
Newton's third law of motion
When air flows over an airplane wing, it sticks to the surface. What's the name of this process?
Coanda effect
Coriolis effect
Photoelectric effect

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What term describes the degree to which an airfoil is curved?
camber
lift
pitch
What are the two main types of drag?
king and queen
light and heavy
parasitic and induced
This term sounds threatening, but it merely describes the position of the wing relative to airflow.
angle of attack
deadhead
killer coefficient

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What's the relationship between the angle of attack and lift?
As the angle of attack increases, lift decreases.
As the angle of attack increases, lift increases.
There's no relationship between angle of attack and lift.
What happens when a plane reaches the critical angle of attack?
It flips.
It stalls.
It stops.
What part of an airplane controls pitching (tilting the nose up or down)?
ailerons
elevators
propellers

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What part of an airplane controls rolling?
ailerons
elevators
fuselage
What part of an airplane controls yawing (turning the nose left or right)?
engine
prop
rudder
Turning an airplane smoothly requires a pilot to operate two controls simultaneously. Which ones?
ailerons and rudder
elevators and rudder
throttle and elevators

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Supersonic flight changes aerodynamics drastically. Which two forces are affected most?
lift and drag
thrust and lift
weight and drag
What number can be determined by dividing the speed of an aircraft by the speed of sound in air?
lift coefficient
Mach number
Reynolds number