Across
- 1. The ratio of the useful energy delivered by a dynamic system to the energy supplied to it.
- 4. Energy Any source of energy that is limited and cannot be replaced when it is used, such as oil, coal, and natural gas.
- 6. Oil Photovoltaic Cell
- 7. Energy The energy that a piece of matter has because of its position or nature or because of the arrangement of parts.
- 8. Refers to the use of resources in ways that prevent their being depleted or permanently damaged.
- 9. Energy The energy possessed by a body as a result of its motion.
- 11. Energy A resource that can be replaced when needed.
- 13. of Conservation of Energy Energy can be neither created nor destroyed. There is a fixed amount of energy present in different forms that can be converted from one form to another, but energy does not go away.
- 16. Energy A resource that cannot be replaced once used.
- 17. Energy Energy from the sun.
- 18. Turbine A propeller driven by the wind and connected to a generator. The wind makes it turn the generator, which produces electricity.
- 21. Grid A system by which electrical power is delivered throughout a region.
- 24. A result of a force moving an object a certain distance.
- 25. Plant materials and animal waste used especially as a source of fuel.
- 28. Energy stored in the earth in the form of heat.
- 29. Energy The power of the atom.
- 30. The first and simplest element on the periodic table. It is one of the most common elements in the galaxy.
- 31. Energy The use of flowing water from waterfalls and dams to produce electricity.
- 33. (Radiant) Energy Energy visible to the eye.
- 34. Thermal Unit The heat equal to 1/180 of the heat required to raise the temperature of one pound of water from 32 degrees Fahrenheit to 212 degrees Fahrenheit at a constant pressure of one atmosphere.
- 36. Gas Gas usually found within the vicinity of petroleum reserves.
Down
- 2. External surroundings.
- 3. Energy Energy produced by mechanical devices, such as gears, pulleys, levers, or internal combustion engines.
- 5. The process of controlling resources; for example, limiting soil erosion, reducing sediment in waterways, conserving water, and improving water quality.
- 10. Change Any significant change in measures of climate, such as temperature, precipitation, or wind, lasting for an extended period of a decade or longer.
- 12. Energy Energy associated with the flow of electrons.
- 14. The ability to do work; types include heat, light, sound, chemical, nuclear, mechanical, electrical.
- 15. Energy An energy source that will never run out.
- 19. A unit measure of work.
- 20. Fuel A natural fuel such as coal or gas formed in the geological past from the remains of living organisms.
- 22. The unit of energy or work in the MKS system of units, equal to the work done by a force of one Newton-meter.
- 23. A measure of power equal to one joule of work per second.
- 26. Effect The phenomenon whereby the earth's atmosphere traps solar radiation, caused by the presence in the atmosphere of gases such as carbon dioxide, water vapor, and methane that allow incoming sunlight to pass through but absorb heat radiated back from the earth's surface.
- 27. The flow of electrical power or charge.
- 32. Energy The potential energy locked within a system and released during a chemical reaction.
- 35. (Thermal) Energy Energy in transit.