Simple machines?

Question

How do you explain how the following work besides just applying force:

Lever

Pulley

Screws

Wedge

Inclined plane

Wheels and axles

Thanks

Answer 1

simple machines enable either the magnification of force (put 1 pound of force in, get 10 pounds out) or change of direction of force (pulley).

the wheel and axle,  lever, s***w, wedge, inclined plane are all magnifiers.

pulley  is change of direction.  Pulleys working together can also be a magnifier.

s***w, wedge, inclined plane are nearly all the same.  s***w is inclined plane wound around a cone.