How an Airplane Flies

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	Lift Air flowing over the wings and the angle of the wing into the wind moves the aircraft upward.
Thrust The engine turns the propeller.  The propeller pulls the aircraft forward.		Drag The shape of the aircraft slows its forward movement.
	Gravity Weight holds the aircraft down.

Student Handout

Directions: Fill in the blank with the appropriate term. Label the airplane.

Four Forces of Flight

Word Bank

• Drag
• Lift
• Thrust
• Gravity

________________is produced by air flowing over the wings and the angle of the wing into the wind.

________________is the forward movement produced by an engine driven propeller, jet, or rocket engine.

________________is the force that pulls an aircraft down.

________________slows the forward movement of an aircraft.

	A._____________________
C. _____________________		B._____________________
	D. ____________________