2. Key Terms
energy resource
nonrenewable resources
fossil fuels
renewable resources
potential energy
kinetic energy
nuclear energy
fission
fusion
electrical energy
solar energy
wind energy
geothermal energy
biomass
3. Nonrenewable Resources
• nonrenewable resources- cannot be replaced
or are replaced much more slowly than they
are used
• Types of nonrenewable resources:
– Fossil fuels
– Electrical energy from fossil fuels
– Nuclear energy
4. Fossil fuels
• fossil fuels- nonrenewable energy resource
formed from the remains of organisms that
lived long ago
• energy stored from the sun
• Examples: coal, petroleum, natural gas
5. Electrical energy from fossil fuels
• Burning fossil fuels generates electrical
energy
• thermal > kinetic > electrical
• Fossil fuels are the main source of electrical
energy generated in the United States
• Electric generators convert chemical energy
in fossils fuels into electrical energy.
6. Nuclear Energy
• Generated from radioactive elements, like uranium
• thermal > kinetic > electrical
• nuclear fission- a large unstable nucleus is broken into two unstable
nuclei, releases additional neutrons and energy
• nuclear fusion- combination of nuclei of small atoms to form a
larger nucleus, releases energy
7. Renewable Resources
• renewable resources- a natural resource that
can be replaced at the same rate at which it is
consumed
• Types of renewable resources:
– Solar Energy
– Energy from Water
– Wind Energy
– Geothermal energy
– Biomass
9. Energy from Water
• Hydroelectric dams
• potential > kinetic
• Water is stored in the
dam > starts flowing
through the dam >
falling water turns
turbines > power
generator
10. Wind Energy
• Wind is caused by the
uneven heating of the
Earth’s surface.
• kinetic > electrical
11. Geothermal Energy
• geothermal energy is thermal
energy caused by the heating of
Earth’s crust.
• Geothermal power plants pump
water underground, which is
heated (by hot rock) to produce
steam that turns the turbine of a
generator
12. Biomass
• Plants use and store energy from the sun.
• Organic matter, such as plants, wood and waste,
that can be burned to release energy is called
biomass.
13. Energy Resource Renewable? Advantages Disadvantages
Fossil Fuels NO • Provides a large
amount of thermal
energy per unit of
mass
• Easy to get and
transport
• Can be used to
generate electricity
and make products
such as plastic
• Nonrenewable
• Produces smog
• can cause acid
precipitation
• risk of oil spills
Nuclear NO • Very concentrated
form of energy
• Does not produce air
pollution
• Produces radioactive
waste
• nonrewable
Solar YES • Is an almost limitless
source
• No pollution
• Expensive
• Only in sunny areas
Water YES • No pollution • Requires dams,
disrupts river’s
ecosystem
Wind YES • Inexpensive
• no pollution
• Has to be windy
Geothermal YES • Requires little land • Must be hot spot
• Produces wastewater
14.
15.
16. • Powering America: How a Nuclear Power Plant
Works
• Hydroelectric Dam
• Wind Power
• Geothermal Power Plant
• What is Biomass?
Editor's Notes
A turbine, from the Greek τύρβη, tyrbē, ("turbulance"),[1][2] is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work
As an energy source, biomass can either be used directly via combustion to produce heat, or indirectly after converting it to various forms of biofuel.
