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WorksheetsPhysics of Flight: Forces and Motions
Total questions: 30
Worksheet time: 15mins
Which force must be greater than weight for a plane to take off and climb?
Lift force upward
Thrust force forward
Momentum of the plane
Drag force backward
Thrust primarily moves a plane in which direction?
Direction of motion
Random directions
Opposite to motion
Perpendicular to motion
Drag acts in what relation to the plane’s motion through air?
No direction
Opposite direction
Same direction
Vertical direction
Weight is caused by which phenomenon?
Gravity pulling downward
Air pushing upward
Engines accelerating air
Fuselage shape effects
Which pair of forces are opposing along the forward–backward axis of flight?
Roll and lift
Lift and weight
Pitch and yaw
Thrust and drag
A wing’s airfoil creates lift mainly due to what difference?
Pressure above and below
Temperature of air
Color of the wing
Fuel in the tank
During takeoff, air deflected downward by the wing generates lift in which direction?
Upward direction
Downward direction
Forward direction
Sideways direction
Which design factor increases lift along with surface area and angle of attack?
Airfoil cross‑section
Cabin pressurization
Passenger seating
Landing gear size
What happens when all four forces are balanced during flight?
Plane cruises steadily
Plane spins sideways
Plane accelerates fast
Plane stalls downward
Why does drag increase with speed for an airplane?
More air friction forms
Engines shut down
Weight grows rapidly
Lift disappears entirely
Which airplane surface contributes the most drag due to largest area?
Landing gear doors
Cockpit windows
Vertical stabilizer
Fuselage body
To maintain altitude, what relationship must lift have to weight?
Lift unrelated to weight
Lift greater or equal
Lift opposite to thrust
Lift less than weight
Pitch describes motion causing the nose to move how?
Up or down
Left or right
Spin around
Stay level
Roll describes motion around which airplane axis?
Central axis
Longitudinal axis
Vertical axis
Lateral axis
Yaw turns the aircraft primarily in which way?
Left or right
Up or down
Inward and outward
Forward and back
Which step begins the engineering design process for an aerospace team?
Choosing materials like composites
Building a full-scale prototype plane
Identifying a need and defining the task
Selecting test equipment and wind tunnels
Which question helps engineers clarify the problem during the need-finding step?
What altitude will the plane cruise at?
How many passengers will fly yearly?
What criteria will measure solution success?
Which airline will buy this model first?
In engineering, constraints are best described as
Safety rules for passengers
Tools like CAD and printers
Limits such as budget or weight
Ideas for brainstorming solutions
Which is a realistic design constraint for airplanes?
Unlimited project funding available
No weight limit for components
Fixed budget and safety standards
No need to meet fuel economy
Commercial aviation needs planes that primarily
Maximize payload and performance
Avoid using composite materials
Increase noise and fuel usage
Ignore maintenance scheduling
A common team activity during design is to
Test only after certification
Work alone without coordination
Skip constraints to save time
Combine parts from different solutions
Why do multiple teams often work on airplane design?
To replace pilots with computers
To meet all requirements together
To avoid using laboratories
To reduce safety standards overall
What is the purpose of testing in aerospace projects?
To increase the level of constraints
To design cabins for passenger comfort
To analyze and refine potential solutions
To certify prototypes after sales
Modern engineers often test designs first using
Computer simulations and models
Wind tunnel models only
Full-scale production aircraft
Paper sketches and rulers
Before certification, commercial plane structures must withstand
Three times their typical load
One and a half times greatest load
Half the expected operating load
Exactly average flight loads
Prototype planes are subjected to tests equal to
One lifetime of wear and tear
Three lifetimes of wear and tear
Half a lifetime of operations
Ten lifetimes of service use
Where do aerospace tests commonly occur?
Only in classrooms and offices
Laboratories and wind tunnels
On dedicated passenger flights
Factories after production runs
Computer-aided design (CAD) programs allow engineers to
Replace safety standards entirely
View 3-D models from all angles
Eliminate the need for testing
Make planes without prototypes
Rapid prototyping using 3D printing helps engineers by
Removing the need for composite materials
Reducing the availability of resources
Increasing noise pollution in cities
Creating physical models from CAD
An advantage of advanced 3D printers is that they can
Eliminate maintenance requirements
Replace all laboratory testing equipment
Make single-piece durable fuel nozzles
Print flight-ready full airplanes
