The Science of Paper Airplanes

Who is the presenter of the video?

• Emily White

• John Collins

• Michael Smith

• Sarah Johnson

What is the key to making a good paper airplane according to John?

• Sharp creases

• Strong paper

• Big size

• Colorful paper

What causes a paper airplane to return to neutral when it tilts?

• Dihedral angle

• Tail design

• Paper weight

• Wing size

What is the role of dihedral angle in flight stability?

• It increases speed

• It reduces weight

• It helps in balancing

• It decreases lift

Which force opposes gravity to allow a paper airplane to fly?

• Lift

• Tension

• Thrust

• Drag

What principle was incorrectly believed to explain how lift works?

• Pascal's Law

• Coanda Effect

• Bernoulli's Principle

• Newton's Third Law

What effect correctly explains how airflow assists in lift?

• Bernoulli's Principle

• Coanda Effect

• Newton's Third Law

• Venturi Effect

What happens when the airflow follows the Coanda effect?

• It decreases pressure

• It stabilizes the plane

• It follows the surface contour

• It increases lift

What is 'wing loading'?

• Weight of wings

• Speed of wing flapping

• Lift generated by wings

• Weight divided by wing area

What is the main advantage of the Phoenix Lock design?

• More weight

• Enhanced color

• Reduced drag

• Increased speed