the 4 forces of lift

lift,drag,thrust,weight

Lift

Lift is the force that acts at a right angle to the direction of motion through the air. Lift is created by differences in air pressure.

Drag

Is the force that acts opposite to the direction of motion.Drag is caused in friction and differences in air preassure.

Thrust

The force that propels flying machines in the direction of motion. Engines produce thrust.

Weight

The force of gravity.It acts in a downward direction toward the center of the earth.