Understanding Flight and Forces

What is the primary force that opposes the weight of an aircraft and helps it to stay in the air?

• Thrust

• Lift

• Drag

• Propulsion

Which principle explains how the pressure of a fluid decreases as its velocity increases?

• Newton's First Law

• Bernoulli's Principle

• Newton's Third Law

• Aerodynamics

What is the force that propels an aircraft forward?

• Drag

• Lift

• Thrust

• Weight

Which of Newton's laws states that an object in motion will stay in motion unless acted upon by an external force?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Fourth Law

What is the effect of increased weight on an aircraft's flight?

• It increases lift

• It decreases drag

• It requires more thrust to maintain altitude

• It has no effect

Which force acts opposite to the direction of motion and slows down an aircraft?

• Lift

• Thrust

• Drag

• Weight

How does a hot air balloon achieve lift?

• By increasing thrust

• By heating the air inside the balloon

• By reducing drag

• By increasing weight

Which of the following is NOT a force acting on an aircraft?

• Thrust

• Lift

• Gravity

• Friction

What is the role of aerodynamics in flight?

• To increase weight

• To reduce drag and increase lift

• To increase thrust

• To decrease lift

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Fourth Law