A few simple machines that make life easier are the screw, the pulley, and the inclined plane.
The screw makes life easier by letting people screw electronics together and not hammering a nail into your computer or other electronics. The screw also lets people screw boards, pieces of metal, and other materials together without the chance of hitting their fingers.
The pulley makes life easier by letting you lift a load up easier by cutting the work that you do in half. But the more rope and pulleys you have, you have to work less to do the same thing by using mechanical advantage.
The inclined plane makes life easier by being a door stopper so you don’t have to open the door each time you go through a doorway. Or it could be a ramp that makes it easier to load things into cars or anything that is raised up higher than you and your load by using mechanical advantage.
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