Aviation Unit 1 Review

Planes are able to fly because

• The air traveling over a wing meets up at the back of the wing at the same time

• Forces cause objects to accelerate

• There is an imbalance of forces in the vertical direction

• 4 forces are acting on a plane: Thrust, Drag, Lift and Weight

The following Aircraft has what type of engine characterization?

• Twin Turbine engines

• Twin piston Engines

• Single Turbine Engine

• Multi Piston Engines

What are the characteristics of this Airplane

A fully fueled aircraft has a weight of 3,000 lbs. Which of the following lifts would allow an aircraft to take off?

• 1,500 lbs

• 2,900 lbs

• 2,999 lbs

• 3,200 lbs

Planes are able to fly because of ________ the forces acting in the vertical direction

Which of the following best explains how an aircraft wing generates lift?

• Air moving over the wings must meet up at the back of the wings

• There is an imbalance of forces

• Air molecules strike the bottom of the wing more often and with more force than the top of the wing

• For every action there must be a reaction equal in magnitude but opposite in direction

According to Newton's 1st law:

• An object that is moving with constant speed must have a net force on it

• Every Action has a reaction which is equal to the action

• An object at rest will always have zero forces on it

• Objects speed up or slow down due to forces

Newton's 2nd law states

• That the acceleration of an object is proportional to its weight

• The acceleration of an object is inversely proportional to its mass

• All else being an equal an object with more mass will have a greater acceleration on it`

• Every action has an equal reaction

An aircraft is maintaining cruising flight at constant speed. The sum of forces of the aircraft is....

What is the upward force that counteracts the force of gravity, produced by changing the direction and speed of a moving stream of air?

• thrust
• drag

• gravity
• lift