What are the four forces that affect a plane's ability to fly?
Flight

Quiz
•
Engineering
•
10th Grade
•
Easy
Jason Rauch
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Weight, lift, gravity, and thrust
Weight, drag, lift, and thrust
Gravity, drag, lift, and propulsion
Weight, drag, gravity, and propulsion
Answer explanation
The four forces affecting a plane's ability to fly are weight, drag, lift, and thrust. Weight pulls the plane down, lift pushes it up, thrust propels it forward, and drag resists its motion. Thus, the correct answer is 'Weight, drag, lift, and thrust'.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which force must be greater than or equal to weight for a plane to fly?
Drag
Thrust
Lift
Gravity
Answer explanation
Lift is the upward force generated by the wings of a plane. For a plane to take off and fly, lift must be greater than or equal to the weight of the plane, overcoming gravity.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of thrust in an airplane's flight?
It pulls the plane upward.
It moves the plane forward.
It pushes the plane downward.
It stabilizes the plane.
Answer explanation
Thrust is the force that propels an airplane forward. It is generated by the engines and is essential for overcoming drag and achieving flight. Therefore, the correct answer is that thrust moves the plane forward.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the shape of an airfoil contribute to lift?
It increases the weight of the plane.
It decreases the thrust needed.
It causes air to move faster above the wing, creating lower pressure.
It increases drag to stabilize the plane.
Answer explanation
The shape of an airfoil is designed to create a pressure difference. As air moves faster over the curved top surface, it reduces pressure above the wing, generating lift, which is essential for flight.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of ailerons on an airplane?
To control the plane's speed
To control the plane's altitude
To control the plane's turns
To control the plane's thrust
Answer explanation
Ailerons are control surfaces on the wings of an airplane that manage roll, allowing the aircraft to turn. They work by changing the lift on each wing, making them essential for maneuvering during flight.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of the plane is responsible for controlling its climb and dive?
Rudder
Ailerons
Elevators
Propellers
Answer explanation
The elevators are the control surfaces located on the tail of the plane. They are responsible for controlling the pitch, which allows the aircraft to climb or dive. The other options do not perform this function.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the elevators on the tail of a plane are raised?
The plane's nose tilts downward.
The plane's nose tilts upward.
The plane turns left.
The plane turns right.
Answer explanation
When the elevators on the tail of a plane are raised, they create an upward force on the tail, causing the plane's nose to tilt upward. This is a fundamental principle of aircraft control.
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