Work and Energy

1. a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated
3. one of the six basic types of machines of which all other machines are composed
6. a sloping ramp up which heavy loads can be raised by ropes or chains.
9. a tool containing one or more parts that uses energy to perform an intended action they are usually powered by mechanical, chemical, thermal, or electrical means, and are often motorized.
12. the energy that an object has because of the position, shape, or condition of the object
14. a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.
15. the transfer of energy from one object to another, especially in order to make the second object move in a certain direction.
16. the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force

2. 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.
4. wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used to raise heavy weights
5. is a machine made up of two or more simple machines
7. a change in the identity or characteristics of an atomic nucleus that results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.
8. the energy of a moving object due to the object's motion
10. the capacity to do work
11. is the rate at which work is performed or energy is converted.
13. a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them