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Sci Energy Sources
Question | Answer |
---|---|
If the fuel rods in a reactor vessel produce too much heat, a condition called a(n) _______ may occur. | meltdown |
What is hydroelectric power? | Electricity produced using the energy of flowing water. |
Are incandescent light bulbs less or more efficient that compact fluorescent bulbs? | less efficient |
What are the three major fossil fuels? | coal, oil, and natural gas |
What is an advantage of solar energy? | Solar energy will not run out for billions of years. |
Fossil fuels are energy-rich because they contain __________________. | hydrocarbons |
The splitting of an atom's nucleus into two smaller nuclei is called ______ | nuclear fission |
In the future, cars may provide energy savings by ______ | running on electricity |
Coal is a solid fossil fuel formed from _______. | decaying plant remains |
The combining of two atomic nuclei to produce one larger nucleus is called __________ | nuclear fusion |
What are biomass fuels? | fuels made from living things |
What is the most widely used source of renewable energy in the world today? | hydroelectric power |
What is the most plentiful fossil fuel in the United States? | coal |
Why are fossil fuels considered nonrenewable resources? | Fossil fuels take hundreds of millions of years to form. |
The process of nuclear fission begins when a _____________ strikes the nucleus of an atom. | neutron |
One example of an energy-efficient device is a(an) _______ | fluorescent light bulb |
The intense heat beneath Earth's surface is called _______ | geothermal energy |
What is the process of burning a fuel to change chemical energy into thermal energy called? | combustion |
Solar plants use giant ______ that focus the sun's rays to heat water. | mirrors |
What is produced to turn the blades of a turbine when fuel is burned to boil water? | steam |
What is the result of using fossil fuels more rapidly than they are formed? | The reserves will eventually be used up. |
Petrochemicals are compounds that are made from the fossil fuel _____. | oil |
Which fossil fuel produces the lowest levels of air pollutants? | natural gas |
What type of solar heating system uses fans and pumps? | active solar heating system |
What is efficiency? | Efficiency is the percentage of energy that is actually used to perform work. |
Factories where crude oil is separated into fuels and other products are called _______. | refineries |
Wind energy is actually an indirect form of ________ | solar energy |
What does energy conservation mean? | reducing energy use |