When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.

imple machines help us change the amount of force or the direction of the force needed to move an object. Find out how by learning more about levers. Major Funding by the Laura Moore Cunningham ...

Some debates are never ending and will rage until time stops. Ford or Chevy. Good versus evil. Old or new. Chocolate or vanilla. Donkey or elephant. Which is best can lead to arguments that are ...