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25 questions
Geothermal energy uses heat energy from under the earth’s surface to heat buildings and also to generate ____ if the heat is hot enough to make steam.
building materials
solar power
fossil fuels
electric energy
The house illustrated here uses panels on the roof to collect a natural resource and convert it into electricity that can be used.
Which alternative energy source does this house use?
Water
Wind
Solar photovoltaics
Geothermal
Which of the following transforms energy from uranium atoms into electrical energy?
magnetic fields
solar panels
nuclear fission
fusion, like in the sun
Which of the following transforms energy from plant and animal matter into electrical energy?
rotating windmills
burning biomass
splitting atoms
mining coal
Which of the following nonrenewable energy resources is NOT a fossil fuel?
Natural gas
Coal
Oil
Nuclear
One con (disadvantage) of hydropower is that dams are
they starve downstream areas of water
they are costly to build & displace towns
they prevent fish migration
All of these answers.
they disrupt ecosystems up- & down-stream
Which of the following--select more than 1 answer--are fossil fuels?
coal
oil
geothermal
natural gas
A disadvantage of using nonrenewable energy sources is that they __.
cause pollution
are very expensive
can be used over and over
only take a few years to be able to reuse
Geysers and volcanoes are examples of __.
coal
hydropower
solar
geothermal
A disadvantage (con)of solar energy is
that the clouds can block the sunlight
it is not available at night
that the clouds can block the sunlight and it is not available at night
the sun is too hot to be absorbed in solar panels
Electricity is a secondary source of energy because it must be made using....
solar photovoltaic cells to convert light into electricity.
fuels to make steam to turn turbines and generators
flowing water to turn turbines and generators
wind to turn fan blades and generators
All of these answers are correct.
Electricity from nuclear fission has major issues because...
it is extremely inefficient
nuclear power plants cost billion$ of dollar$ to build & maintain
it produces very toxic radioactive waste that unfriendly countries could use to make bombs
accidents with nuclear power plants tend to be catastrophic.
All of these answers are correct.
Other benefits from dams include all these EXCEPT....
recreational places for boating, camping, fishing
water supply for a city
irrigating farmland
regular downstream flooding of farm fields to flush out salt & recharge soil with silt & nutrients
electricity generation
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