Energy review

6. the state or quality of being efficient
7. A closed path through which an electric current flows
8. A machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load
10. the ratio of the force produced by a machine to the force applied to it
12. energy stored
13. closed circuit in which the current follows one path
14. a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
15. mechanism that converts rotational motion to linear motion simple machine

1. parallel circuit is a closed circuit in which the current divides into two or more paths
2. apply force to the object, cutting it or splitting it apart
3. a rigid bar resting on a pivot
4. Mechanical energy is the sum of kinetic and potential energy
5. any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
9. plane plane inclined at an angle to the horizontal.
11. energy which a body possesses by virtue of being in motion.
16. using a force to move an object a distance