Air & Air Pressure
The force caused by air pushing on a surface
Bernoulli discovered his famous effect in this century:
A. 1500s
B. 1700s
C. 1900s
What is B. 1700s?
Lift is governed by this person's principle.
Who is Daniel Bernoulli?
When the airplane takes off and the nose rises into the air, you are increasing the ________.
What is pitch?
The direction thrust pushes an airplane.
What is forward?
This happens to air pressure as you go up higher in elevation
What is decrease?
The Bernoulli effect says that as speed increases, pressure _________.
What is decreases?
Your weight would be different on Mars because this force is different there.
What is gravity?
This movement is similar to turning a car.
What is yaw?
Thrust is governed by this Newton's Law of Motion that says for every action, there's an equal and opposite reaction.
This is how many pounds of air pressure is acting on a 2 square inch area at sea level (air pressure = 14.7 psi).
What is 29.4 lbs?
According to the Bernoulli affect, an object will move toward an area of ___________ pressure.
A. Higher
B. Lower
What is B. Lower?
If an object has more mass, it has ________ force due to gravity.
A. More
B. Less
What is more?
When an airplane banks, it uses a combination of what two movements?
What is roll and yaw?
This kind of drag is caused by the skin of the airplane being rough at a microscopic scale
What is friction drag?
Air pressure is the _________ of air pushing on objects.
What is weight?
The Bernoulli Effect states that air moves faster over a _________ surface.
What is curved?
For lift to occur the pressure above the wing must be _______ than the pressure below the wing.
What is less?
This is the control surface on the wings that control roll.
What are ailerons?
Aerodynamic shapes are called this word.
What is streamlined?
Air is made mostly of this gas.
What is Nitrogen?
This is the type of substance something must be moving from to experience the Bernoulli effect.
What is a fluid?
You could increase this on a plane to create more lift.
What is the size of the wings or the speed that it's traveling?
What two movements are controlled by mechanisms on the tail of the plane?
What are pitch (elevators) and yaw (rudder)?
Increasing thrust ___________ drag.
What is increases?