Chapter 4: Inputs to Technology Systems

2. 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.
3. A person who designs, builds, or maintains engines, machines, or public works.
4. planes A plane inclined at an angle to the horizontal.
5. The form of energy that is created by heat, or an increase in temperature.
7. The energy that is possessed by an object due to its motion or due to its position.
9. and axle A simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft.
10. A wheel with a grooved rim around which a cord passes.
12. An energy field is a region in space in which a magnetic or electric.
15. material Fiber created from natural materials or by chemical processes.

1. The quantity of something per unit measure, especially per unit length, area, or volume.
3. Energy made available by the flow of electric charge through a conductor.
6. That part of the energy in a substance that can be released by a chemical reaction.
8. The energy released by the nucleus of an atom as the result of nuclear fission, nuclear fusion, or radioactive decay.
11. Energy that exists in the absence of matter.
13. A device or implement one held in the hand, used to carry out a particular function.
14. 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.