NON-RENEWABLE ENERGY
What is non-renewable energy?
Energy that comes in limited amounts and cant be replenished easily.
The greatest user of energy in the United States.
Is industry
What is hydroelectric power?
a renewable energy source that generates electricity by harnessing the natural flow or fall of moving water.
Is nuclear energy better than fossil fuels?
Yes
What is solar energy?
Energy harnessed from the sun.
What is the most common non-renewable energy?
Petroleum(gas)
About 99% of the energy that heats the earth and our homes comes from _______
The sun
Hydroelectric power plants emit large amounts of greenhouse gases.
False
Is nuclear energy dangerous?
No, but it can be if not handled carefully.
Do solar panels generate power at night?
no.
Why are fossils fuels non-renewable?
they take millions of years to form.
How many type of renewable energy are there?
six types
Pumped-storage hydropower acts as a giant "water battery."
True
What are the downsides of nuclear power? NAME TWO
Costs a lot of money and radioactive wastes must be stored safely for thousands of years.
Why don't we use solar energy as much as we could?
Its very costly and there are geographical restraints.
The "dirtiest" energy source is ______, because it produces the most pollution.
Coal
Social scientists suggest it takes only about ____% of the population of a country or of the world to bring about major social change.
5-10
How does a dam work?
it spins a turbine connected to a generator that produces electricity.
What happens to nuclear waste?
It becomes spent fuel which stays radioactive for years.
How much do solar panels cost?
about $15,000-$25,000
What percentage of our energy use comes from fossil fuels?
82%
Name 4 ways you can use renewable energy.
Switch to green power, replace fossil fuels with biomass/biofuels, use small scale hydro power, and use Geothermal Energy. (answers may vary)
What type of energy does hydroelectric power use?
Kinetic and Potential
How is nuclear energy generated?
by splitting heavy atoms (fission) or combining light ones (fusion), releasing immense amounts of zero-emission heat used to boil water, create steam, and turn electricity-generating turbines.
Using solar energy to heat a building without special equipment such as pumps or collectors, usually through windows and skylights is called what?
Passive solar heating