Nuclear
Energy within the nucleua of an atom.
What is nuclear energy?
Oil and natural gas result from
the decay of tiny marine organisms that accumulated on the ocean floor millions of years ago
In order to power machines, the energy in fuels is often converted into ____________________ energy, because ____________________ is more convenient to use.
electrical, electricity
Deep ocean oil reserves may be tapped in the future, but unless ______________________________ improves, oil from the deep ocean will be much more ______________________________ than oil produced on land.
oil-drilling technology, expensive
Which of the following is not a main use of fuel?
a. transportation
c. heating and cooling buildings
b. manufacturing
d. cooking
Cooking
This must take place at extremely high temperatures
What is nuclear fusion?
Which of the following accurately describes the use of fossil fuels for energy?
a. At the present rate, we will run out of fossil fuels in about 250 years.
b. Burning fossil fuels releases large amounts of carbon dioxide into the atmosphere.
c. Fossil fuels account for 69 percent of the electricity generated in the United States.
d. All of the above
b. Burning fossil fuels releases large amounts of carbon dioxide into the atmosphere.
This works by converting mechanical energy into electrical energy.
What is an electric generator?
The country that uses the least amount of energy per person.
What is Argentina?
Which of the following is an advantage of using fossil fuels for energy? a. the resulting air pollution
c. limited quantities
b. versatility in their uses
d. toxic by-products
versatility in their uses
What is the main reason why fewer nuclear power plants are being built today compared to 40 years ago?
Nuclear power plants have become too expensive to generate electricity at a reasonable cost
A fuel’s suitability is dependent on all the following factors, except a. energy content. c. availability. b. cost. d. magnetism
Magnetism
Solar energy, or energy from the sun, is contained in
fossil fuels
These should be located only in areas that are extremely geologically stable.
What are storage sites for nuclear wastes?
Much of the oil and natural gas in the United States is located in a. Alaska, Minnesota, New York, and Texas.
b. Alaska, California, Michigan, and Nevada.
c. Texas, Colorado, New York, and the Gulf of Mexico.
d. Alaska, Texas, California, and the Gulf of Mexico.
d. Alaska, Texas, California, and the Gulf of Mexico.
New nuclei and neutrons result from
the splitting of an atom’s nucleus
Explain how coal is formed
swamplands are buried by sediment. The added weight creates heat and pressure that converts the plants to coal.
21. Which of the following is an advantage of nuclear energy?
a. It does not produce solid waste.
c. It poses no safety risks.
b. It is cost-efficient.
d. It does not produce air pollution.
It does not produce air pollution.
Residents of the ____________________ and ____________________ enjoy some of the lowest gasoline taxes in the world.
United States, Canada
A nuclear reactor is surrounded by a thick _________________________ that is filled with a(n) _________________________.
pressure vessel, cooling fluid
During the process of nuclear fission, a. a neutron splits a uranium-235 atom, forming new elements and releasing several neutrons, plus energy.
b. a neutron splits a daughter nucleus, thus creating uranium-234.
c. radioactivity causes the neutron of a uranium-235 atom to split in two.
d. a lightweight atom combines with another lightweight atom to create a single, heavy atom.
a. a neutron splits a uranium-235 atom, forming new elements and releasing several neutrons, plus energy.
How is electrical energy generated in a coal-fired power plant?
The heat generated from burning coal turns water into steam, which turns a turbine, thus running the electric generator
A major source of pollution when coal is burned is ____________________
sulfur
A distinction can be made between a(n) ____________________, which is an oil deposit that has been discovered and is commercial, and ____________________ that are yet to be discovered or made commercial.
oil reserve, oil deposits
If fossil fuels come from the remains of dead organisms, why are they not considered renewable resources?
It takes millions of years for fossil fuels to form. At the rate we are now using them, they will be used up much faster than they can be replaced.