| A | B |
|---|
| Non-renewables energy resources | natural resource that cannot be readily replaced by natural means at a quick enough pace to keep up with consumption. Examples: coal, natural gas, oil |
| energy | the ability to do work or cause change, such as moving an object some distance or causing a bulb to light up. |
| Kilowatt-hour | a unit of energy equal to the work done by a power of 1000 watts operating for one hour |
| energy efficiency | The percentage of energy put into a system that does useful work (the closer the input of energy is to what comes back out) |
| LED lightbulb | efficient light bulbs containing Light Emitting Diode which uses less energy and produces little heat |
| Law of Conservation of Energy | the law that states that energy cannot be created or destroyed but can be changed from one form to another |
| second law of thermodynamics | when energy is changed from one form to another, some useful energy is always degraded into lower quality energy |
| Calculating Energy Cost | Change watts to kilowatts by dividing by 1000, multiply by hours used in the specified time (usually a, week, month or year), multiply by the rate per kilowatt hour. |
| Green house gas effect | Methane, carbon dioxide, ozone and nitrous oxide causes heat build up in the lower atmosphere. Most of the increased production of these gases that leads to global climate change is a result of burning fossil fuels for energy. |
| renewable energy sources | energy such as solar energy, wind energy, and hydroelectric energy derived from essentially inexhaustible (regularly replaced) sources |
| half-life | length of time required for half of the radioactive atoms in a sample to decay or become non-radioactive. |
| Yucca Mountain | Located in Southern Nevada.. It is the only facility currently designed for permanent underground storage site for 70,000 tons of high-level radioactive wastes from commercially operated nuclear power plants |
