WorksheetsPrinciples of Flight
Total questions: 20
Worksheet time: 4mins
What mechanism was used to aid a human being in successfully flying?
Hot air balloon
Kite
Glider
Propeller driven airplane
Where did flight by balloon first occur?
England
United States
France
China
What do aerodynamic characteristics affect?
speed
motion
type of aircraft
aircraft landings
What do you need for an object to fly?
an engine
a force to lift it
gasoline
wings
Which edge of an airfoil cuts through the air ahead?
chord
camber
leading
trailing
What did aircraft designers use to test models of new aircraft?
Wind Tunnels
Airfoils
Chords
Camber
What laws are fundamental to our understanding of flight today?
Questś laws of airlift
Newtonś laws of motion
Paineś laws of aerodynamics
Wrightś laws of flight
What is sometimes called the law of inertia?
Newtonś First Law of Motion
Newtonś Second Law of Motion
Newtonś Third Law of Motion
Bernoulliś Principle
When does an airplane take off and fly?
when the air traffic controller gives the okay and the pilot turns on the engine
when the outside force moves the aircraft fast enough to provide enough lifting force
when the engine is at full throttle and provides enough power for flight to occur
when all system checks are completed and the aircraft’s wings are in proper position
According to Newton’s second law of motion, an object’s acceleration is proportional to the sum of all forces exerted on it. How can you write this law?
force(f) = mass(m) + acceleration(a) or F=m+a
force(f) = acceleration(a) / mass(m) or F=a/m
force(f) = mass(m) x acceleration(a) or F=ma
force(f) = acceleration(a) – mass(m) or F=a–m
It took centuries of experimenting, of trying and failing, before people understood how things fly. They slowly had to develop a (a) of flight.
Relative wind has both a ____________and a ___________.
(a)
By changing the ________ ________ ________of an airplane, you change the amount of lift a wing produces.
(a)
The critical angle of attack is somewhere around (a) degrees in most aircraft.
Chinese Emperor Gao Yang forced prisoners to attach themselves to balloons and leap from a high tower.
True
False
While riding in a car, you would slam into the windshield if you weren’t wearing your seatbelt. This is sometimes called the law of inertia.
True
False
In general, when an aircraft is in flight, the relative wind blows in nearly the exact opposite direction to the plane’s direction.
True
False
Name the elements of an airfoil
Camber
Leading edge
Chord
All of the above
State Newtonś First Law of Motion.
(a)
A stall can occur at any airspeed or pitch attitude.
True
False
