10 questions
If an airplane engine cut out in midair, which force would decrease almost immediately?
Gravity
Thrust
Weight
Drag
What word describes the following shape?
Airway
Airfoil
Aeron
Airflow
What can you infer from the fact that airplane wings and birds' wings have similar shapes?
That birds fly better than airplanes because they existed first
That birds and airplanes take off in the exact same way
That airplane wings were originally covered in feathers
That aircraft engineers studied birds' wings when they designed plane wings
When a plane is in flight, what's the main difference between the air below and above its wings?
The air above the wings has lower pressure
The air below the wings has lower pressure
The air above the wings has a higher temperature
The air below the wings has a higher temperature
When might you feel the force of drag in everyday life?
When you take an elevator upward
When you stick your hand out the window of a moving car
When you sit under a ceiling fan
When you take an escalator downward
In the phrase, "Lift and thrust counteract the forces of weight and drag," what does "counteract" mean?
Balance out
Outweigh
Act in harmony with
Overpower
Streamlined objects experience less drag. Which of the following vehicles best fits the description "streamlined?"
Why don't jumbo jets have propellers?
Because their wings are aerodynamically shape
Because only helicopters have propellers
Because jet engines provide more thrust
Because they are powered be jet fueled, not friction
What can you infer about the airplane parts called "elevators?"
Manipulating them allows the plane to move up or down
Manipulating them allows the plane to turn left or right
Manipulating them allows the plane to go forward or backward
Manipulating them changes the forces of weight and drag
To which feature of a car is the control column of an airplane most similar?
The steering wheel
The gas pedal
The brake pedal
The gearshift