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Renewable Energy
Renewable Energy Resources vocab
Question | Answer |
---|---|
Source of energy that travels in electromagnetic waves | Solar |
Fossil fuel that provides the U.S. with almost half of its electric needs | Coal |
Source of energy that results from organic materials | Biomass |
Fuel made from corn | Ethanol |
What is the main disadvantage/argument against nuclear power plants? | Radioactive nuclear waste |
A resource that can be replenished | Renewable |
Energy sources that do not deplete fossil fuel reserves | Alternative Energy |
Energy that is captured from the movement (flow) of water | Hydroelectric |
A device that converts radiant energy from the sun into electrical energy | Photovoltaic cells |
The radioactive element that is used in a controlled fission reaction | Uranium |
Fossil fuels are anticipated to run out in | 50-70 years |
Non-renewable resources that take millions of years to form are called | Fossil fuels |
What are the negative consequences of using fossil fuels | Greenhouse gases, acid rain, pollution |
This renewable energy source has a very expensive initial cost and therefore many homes have not chosen to utilize this source | Solar |
Energy is defined as the ability to cause | Change |
The earth's primary source of energy | Sun |
Oil can be refined to make | Gasoline |
A material that does not carry electrons easily | Insulator |
A material that does carry electrons well | Conductor |
Using a battery to operate a flashlight is an example of transforming _______ energy to _______ energy. | chemical, electrical |
Using a blow dryer is an example of transforming _________ energy to ________ energy. | electrical, thermal |
Energy that comes from heat inside of the earth | Geothermal |
A device that converts kinetic energy into electrical energy | Generator |
What is the main benefit of using fossil fuels over alternative energy sources? | less expensive |
Energy from the earth's oceans and their water movement | Tidal power |
The uneven heating of the earth's atmospheric layers causes | Wind |
Burning fossil fuels release what gas into the atmosphere | Carbon dioxide |
Energy due to an objects place or position | Gravitational potential energy |
One way to save energy and lower electric bills is to use ______________ effectively | Insulation |
___________ and __________ are the biggest part of an energy bill. | Heating, cooling |
Insulation is rated by ___________. The higher the rating then the more effective the insulation is at resisting the transfer of heat. | R-value |
Ventilating a home's attic helps reduce solar heat gain, therefore reducing | Energy costs |
Energy can be produced by stripping the electrons from hydrogen gas using a | Hydrogen fuel cell |
When a home has air leaks around windows and door frames, energy is wasted. A home can be sealed using __________. | Caulk |
A generator uses the kinetic energy from a spinning _________ to turn its metal coils which results in an electrical field. | Turbine |
Reflective materials such as aluminum or other metallic foils that are placed under roofs in order to reduce the amount of heat transfer to the attic. | Radiant barrier |