Renewables
The renewable energy source or fuels made of organic matter.
What is biomass?
The most common fuel source globally.
What are fossil fuels?
The heat source in nuclear power plants.
What is radioactive decay/nuclear fission?
One negative environmental consequence of using crude oil/petroleum.
What are: habitat destruction, water depletion, water contamination, oil spills?
If you start with 100 grams of a substance with a half-life of 5 days, how much will remain after 10 days?
25 grams
The energy source that uses semiconductors that emit low voltage electric currents when exposed to photons.
What is solar power? OR What are photovoltaic cells?
The most common fuel sources in developing nations.
What are wood and charcoal?
An element commonly used in nuclear power plants.
What is Uranium-235?
What is cogeneration?
How long will it take for a 40.0 gram sample of I-131 to decay to 2.5 grams? It has a half life of 8 days
2 different methods of hydroelectricity.
What are run of rivers (dams) or tides (tidal)?
The 3 types of coal.
What are lignite, bituminous, and anthracite?
The 3 locations of major nuclear accidents.
Where are Three Mile Island, Fukushima, and Chernobyl?
Products from a fossil fuel combustion reaction.
What are water and carbon dioxide?
A refrigerator has a power rating of 1.5 kW and runs for 24 hours. How many kWh of energy does it use?
36 kWh
The waste product of hydrogen fuel cells.
What is H2O?
The form of energy that wind uses to spin the turbine.
What is kinetic energy?
The similarities between a nuclear power plant and a fuel combustion power plant.
The reason(s) why natural gas is considered the "cleanest" fossil fuel.
What are low air pollutants and no soot/ash?
An electric heater uses 3 kW of power. If you run it for 2.5 hours, how many kWh of energy will it use?
7.5 kWh
What are radioactive decay of elements and magma convection currents?
3 actions that can reduce energy usage.
What are: improving fuel efficiency, subsidizing electric vehicles, tax credits for renewables, increased public transportation, home improvements, lowering water usage, etc.
environmental costs of nuclear power.
What are: radioactive spent fuel rods and long term storage, mine tailings contaminating soil or water, water depletion or contamination, thermal pollution?
2 environmental consequences of fracking.
What are: fracking fluid contamination, depletion of water sources, habitat loss, habitat fragmentation, release of methane, seismic activity?
How much money does it cost to run a dryer for an entire year if you run it for 4 hours per day.
The dryer has a power of 12 kW and energy costs $.15 per kWh.
$2628