There are many factors that affect the turning of the flow, which creates lift. At the top of the figure, aircraft wing geometry has a large effect on the amount of lift generated. The airfoil shape and wing size will both affect the amount of lift. To generate lift, we have to move the object through the air. The lift then depends on the velocity of the air and how the object is inclined to the flow.
Lift depends on the mass of the flow.
We can gather all of this information on the factors that affect lift into a single mathematical equation called the Lift Equation. With the lift equation we can predict how much lift force will be generated by a given body moving at a given speed. You can investigate the various factors that affect lift by using the FoilSim II Java Applet. If your browser doesn't support JAVA, or you just want your own copy of FoilSim to play with, you can download it at no charge.