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Chapter 5 Energy Resources and Consumption
n/a
44
Environmental Studies
12th Grade
03/19/2014

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Term
kinetic energy
Definition
Energy possessed by a moving object is called
Term
two forms of mechanical energy
Definition
potential energy and kinetic energy
Term
potential energy
Definition
A stationary object has if its position can be converted into movement
Term
Chemical energy
Definition
energy stored in chemical bonds between atoms that can be released during chemical reactions
Term
Thermal energy
Definition
aka heat, created by movement of molecules in a substance
Term
Mechanical potential energy
Definition
is energy stored in objects by tension or position.
Term
Kinetic (electromagnetic)
Definition
energy of motion, which can be transformed into electrical energy.
Term
Nuclear energy
Definition
is stored in the nuclei (core) of an atom

is released when an atom splits apart or two atoms join

together.
Term
fission
Definition
The process of splitting an atom is called
Term
fusion
Definition
the process of joining atoms is called
Term
Gravitational energy
Definition
is energy stored in an object’s height.The higher and heavier the object, the more gravitational

energy is stored.
Term
Electrical energy
Definition
is created from the motion of electrons.
Term
electrons
Definition
Electrical energy is transferred by tiny charged particles
Term
The first law of thermodynamics
Definition
states that energy can be changed from one form to another, but it cannot be created or destroyed.
Term
The second law of thermodynamics
Definition
energy naturally flows from states of high energy to low energy; some energy is lost at each transformation

to states of low energy (high entropy).
Term
gasification
Definition
the process in which coal can be converted into synthetic gas (syngas)
Term
anaerobic environment
Definition
one in which there is no oxygen.
Term
bituminous coal
Definition
black coal, called bituminous coal, is valuable as a fuel source for generating electricity and to manufacture coke for use in the steel industry
Term
anthracite
Definition
is a glossy, almost metallic-looking substance; densest and highest energy coal
Term
Synthetic fuels, or Synfuels
Definition
are liquefied fuels obtained from nonpetroleum sources such as coal, natural gas or

biomass feedstocks through chemical conversion.
Term
Coal
Definition
By far the largest reserves of natural fuels are the various types of coal. The known reserves of coal are estimated to last about 200 years at the current rate of consumption.
The largest reserves of coal are in Australia, China, Russia, and the United States.
Term
Crude oil
Definition
Of the three fossil fuels, the known reserves of crude oil are estimated to last about 45 years at current consumption and will dramatically decrease if consumption increases.
The largest reserves are in the
Middle East, which increases the potential for disruption in the world oil supply due to unstable govern-
ments, friction between the countries in the Middle East, and the recent wars in Iraq.
Term
Natural gas
Definition
At current consumption rates, the known reserves of natural gas are estimated to last 60 years.
Europe has approximately 42 percent of the known reserves, while the Middle East has about 34 percent and the United States has about 3 percent.
Term
Generation I reactors
Definition
were designed and built during the 1950s and 1960s. Very few of these early designs are still running; expected to last about 40 years.
Term
Generation II reactors
Definition
are in use today and are known as Pressurized Water Reactors, Boiling Water Reactors, and Heavy Water Reactors.
Term
Pressurized water reactors
Definition
the most common type of reactors in use today; use ordinary water
as both a coolant and a moderator. They have a primary and secondary circuit.
Term
Boiling water reactors
Definition
use ordinary water as both a coolant and a moderator. Using a single circuit, water is supplied under low pressure to cool the reactor.
Term
Heavy water reactors
Definition
use uranium (U-235) as fuel and requires a more efficient moderator, heavy water; made up of deuterium, an isotope of hydrogen that contains an extra neutron, making it heavier than water.
Term
Generation III reactors
Definition
incorporate the most current technologies but very few have gone online. These reactors are similar to generation II reactor designs but incorporate improved fuel technology, thermal efficiency, passive supply systems, and a standardized design.
Term
Generation IV reactors
Definition
are mostly theoretical in nature at this time and are not expected to be feasible

before the year 2030. Among the many types of experimental nuclear reactors are fast-breeder reactors.
Term
Energy Conservation #1
Definition
Add insulation to help hold in warm air in the winter and cool air in the summer, while blocking the unwanted heating and cooling effects of outside air.
Term
Energy Conservation #2
Definition
Add weather stripping to reduce drafts around door frames.
Term
Energy Conservation #3
Definition
Lower the thermostat in the winter and raise it in the summer to use less energy. Instead, compensate by

wearing warmer clothing in the winter and cooler clothing in the summer. Also, install thermostats on each floor to more efficiently regulate temperature.
Term
Energy Conservation #4
Definition
Replace single-pane windows with double- or triple-pane windows filled with noble gases, which cut down

heat exchange through windows.
Term
Energy Conservation #5
Definition
Replace older equipment with more energy-efficient appliances. This may include water heaters, washers
and dryers, dishwashers, heaters, air conditioners, stoves, and refrigerators.
Term
Energy Conservation #6
Definition
Cut down on energy loss through items that are plugged in but not turned on. Unplug electrical equipment

when not in use.
Term
Energy Conservation #7
Definition
Add ceiling fans. A reversible ceiling fan can change the direction of the circulating air, and any ceiling fan

can redistribute the hot air during the winter or the cool air during the summer.
Term
Energy Conservation #8
Definition
Use electronic switches to turn on and off the heater and air conditioner.
Term
Energy Conservation #9
Definition
Buy a more fuel-efficient vehicle.
Term
Energy Conservation #10
Definition
Maintain vehicles with proper tire inflation and tune-ups.
Term
mobile-source
Definition
pollution sources move from one location to another as the vehicle drives.
Term
point-source
Definition
pollution emitted by a single location; electric power plant where the car’s electricity originates, which may burn coal, natural gas, or petroleum
Term
Passive solar energy systems
Definition
require no moving parts and, thus, no input of electrical activity. These include both gravity-fed heating systems and photovoltaic cells, which capture the sun’s energy to generate electricity.
Term
Active solar energy systems
Definition
use pumps and fans to move water heated by the sun throughout buildings, requiring some input of electrical energy. This hot water can be used to heat the house and can be used as hot water for cleaning and bathing.
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