NAME_________________________________ CLASS____________________ DATE____________

A. Answer the following questions.

(1) Which force on an airplane is always directed toward the center of the earth?

 

(2) Which force on an airplane can also be called a resistance force?

 

(3) Which force is responsible for moving the airplane forward?

 

(4) Which force do the wings of the airplane generate?

B. For questions 5-8, predict what effect the following flight conditions would have on the plane. (Would the plane rise, fall, slow, or go faster?)

(5) Drag > Thrust

 

(6) Lift > Weight

 

(7) Thrust > Drag

 

(8) Weight > Lift