The 4 Forces of Flight
By, Kendall Baker
Force 1: Weight
Weight, or gravity acts as a downward force pushing things to the center of the Earth.
Force 2: Lift
Lift acts like a right angle to the direction of motion through air.
This is caused by differences in air pressure.
Force 3: Thrust
Thrust propels the the object in motion.
Engines give thrust.
Force 4: Drag
This is the force that acts in opposition to the direction in motion.