The gravitational Force on an object.
The Upward Force from a liquid ( or gas ) that makes some things float.
The Force in a stretched material.
The Opposing force exerted by a surface as an object moves or tries to move across it.
The forward force from an aircraft engine.
Upward acting force on an aircraft.
It is an Opposing Force acting on an object moving through a fluid ( water or air).
It is a Frictional Force caused by air, acting in a direction opposite to the direction of motion of an object.