Forces of Flight Quiz

Which force pushes the plane upward?

• Weight

• Thrust

• Drag

• Lift

What must be true about thrust and drag for an airplane to take off?

• Thrust must be less than drag

• Thrust must be equal to drag

• Thrust must be greater than drag

• Thrust must be unrelated to drag

What helps balance the forces for smooth flight?

• The airplane's color

• The airplane's design

• The airplane's speed

• The airplane's altitude

What is the role of the airfoil in flight?

• To increase drag

• To create lift

• To reduce speed

• To balance weight

Why do engineers design airplanes to balance weight and lift?

• To make them look good

• To ensure they fly efficiently

• To reduce noise

• To increase speed

Why is managing weight important for flights?

• To save money

• To ensure safe and successful flights

• To reduce noise

• To increase speed

What is a consequence of not managing an airplane's weight properly?

• Increased speed

• Safe flights

• Unsuccessful flights

• Reduced noise

Which law explains the concept of thrust?

• Newton's First Law of Motion

• Newton's Second Law of Motion

• Newton's Third Law of Motion

• Newton's Law of Universal Gravitation

How do propellers generate thrust?

• By using solar panels

• By spinning and pushing air backward

• By using magnets

• By compressing air and igniting it

What happens if an airplane does not have thrust?

• It can still take off

• It can stay in the air

• It cannot take off, stay in the air, or move forward

• It can move forward but not take off