Aerodynamics Quiz

What is aerodynamics?

• The study of heat engines

• The branch of physics that studies the dynamics of fluids as they interact with solid objects

• The study of motion in the absence of air

• The science of sound in gases

Which of the following utilizes the principles of aerodynamics to move through the air?

• Submarines

• Cars

• Airplanes, helicopters, and birds

• Trains

What are the two key effects that allow aircrafts to fly?

• "Push" from the engines and movement of air under the wings

• "Pull" from the propellers and movement of air over the wings

• "Push" from the engines and movement of air over the wings

• "Lift" from the wings and "thrust" from the tail

What is the force that directly opposes the weight of an airplane and holds the airplane in the air?

• Drag

• Thrust

• Lift

• Weight

Which force is a forward force that opposes drag and is provided by the force of a turbine engine or the translation of engine torque into thrust?

• Lift

• Weight

• Drag

• Thrust

What is the force that pulls back on an object and is the result of airflow resistance across the airframe?

• Lift

• Thrust

• Drag

• Weight

Weight is described as a force that an aircraft must overcome in order to maintain flight. What is weight the product of?

When an airplane is moving at constant velocity with no acceleration, which of the following forces must be in balance?

• Lift and weight

• Thrust and drag

• Lift, weight, thrust, and drag

• Gravity and air resistance

What must the lift force generated by the airplane wings equal to for an aircraft to glide effortlessly through the air?

• The thrust force generated by the airplane engines

• The drag force caused by air resistance

• The airplane weight due to gravity

• The acceleration of the airplane

What must the thrust force generated by the airplane engines equal to maintain constant velocity?

• The lift force generated by the airplane wings

• The weight of the airplane

• The drag force caused by air resistance

• The speed of the airplane