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20 Cards in this Set
- Front
- Back
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Energy resources that can replenish themselves in a fairly short time are called....
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renewable energy
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Energy sources that only replenish themselves over very long, "geologic" time scales are...
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non-renewable energy
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Three main fossil fuels are....
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oil
coal natural gas |
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Which fossil fuel is the one primarily used for making electricity?
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coal
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The fossil fuel used mostly for transportation is...
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oil
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A cleaner fossil fuel that is used heavily by industry and is burned indoors in homes is....
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natural gas
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Underground coal mining is ____ for the workers while surface mining ____ the land.
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dangerous
scars |
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Tar sands and oil shales are not mined as much now because....
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it is too costly. You don't get much energy out for what you put in.
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Three big problems with nuclear power are...
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it's very inefficient
the waste product is so toxic accidents |
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Electricity is made by spinning ____ in a magnetic field.
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a coil of wire
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Devices that make electricity are called...
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generators
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Water running down hill to turn a generator is ___ energy
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hydroelectric
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Solar energy devices that involves turning sunlight directly into electricity are called....
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photovoltaic cells
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Wind and water energy are powered by...
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the sun
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The tapping of underground reservoirs to get at hot water or steam is ____ energy.
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geothermal
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Electricity generated by moving seawater is called...
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tidal power
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Wind power is not widespread yet because...
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power lines to them don't exist yet
Noisy Wind doesn't always blow Hazardous to birds |
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What is done to uranium atoms to make heat from nuclear power?
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split them
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Splitting of atoms is called...
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fission
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The easiest way to make our energy resources last longer is to...
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conserve them
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