Simple Machines

2. when work is done, this is the force that the machine does
5. a more complicated machine that combines simple machines such that the output force of one becomes the input force of another
7. the benefit provided by a machine (output force/input force)
10. any device that makes work easier
11. effectiveness of a machine (output work/input work)
13. when work is done, this force is what you do
14. a simple machine made of two connected round objects that rotate about a common axis

1. the fixed point that a lever pivots around
3. the most basic device for making work easier
4. the product of a force being applied over a certain distance (FXD)
6. a rigid bar that is free to pivot, or rotate, on a fixed point
8. a flat, sloped surface that allows you to exert your input distance (a wedge and screw are specific types)
9. the center point or line around which something rotates (spins)
12. a force that always lowers the efficiency of a machine