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Physical Sci Ch 9

Study Guide Ch 9

QuestionAnswer
Unwanted radioactive products formed during nuclear reactions are called? nuclear waste
Petroleum, natural gas and coal are three kinds of? fossil fuels
The type of fossil fuel that forms from the remains of fernlike plants is? coal
What is a renewable organic matter that can be burned in the presence of oxygen to convert chemical energy to thermal energy? Biomass
Devices that use semiconductors to produce electricity from solar energy are? photovoltaic cells
Electricity produced by falling water is called? hydroelectricity
Water that flows due to the gravitational forces among Earth, its Moon, and the Sun has energy referred to as? tidal energy
Petroleum is separated into different compounds through? Fractional distillation
A disadvantage of using hydroelectricity is? disturbs natural ecosystems
Electric current is produced when what type of spinning shaft rotates magnets inside a generator? turbine
Temperature is the biggest challenge in using what as an energy source? Nuclear fusion
The part of a nuclear reactor in which the fuel is located is called the? Core
Renewable organic matter, such as wood and rice hulls, are examples of? Biomass
One reason alternative energy sources are needed is because? supply of fossil fuel is diminishing
An example of a nonrenewable source of energy is? Coal
The fuel used in a nuclear reactor usually comes from? Uranium-238
Which fossil fuel produces fewer pollutants than other fossil fuels? Natural gas
Which fossil fuel is made of hydrocarbons? petroleum
Which fossil fuel contains more impurities than other fossil fuels? Coal
Is Biomass renewable or nonrenewable? renewable
Is coal renewable or nonrenewable? nonrenewable
Is natural gas renewable or nonrenewable? nonrenewable
Is solar energy renewable or nonrenewable? renewable
Is geothermal energy renewable or nonrenewable? renewable
Is water renewable or nonrenewable? renewable
Is wind renewable or nonrenewable? renewable
Is petroleum renewable or nonrenewable? nonrenewable
What is the most abundant fossil fuel? coal
The type of radioactive particle that can be stopped by a piece of paper is the? alpha particle
The most penetrating type of radiation is the? gamma ray
The largest source of background radiation is? alpha
Each element with an atomic number greater than 84 is? radioactive
The three types of nuclear radiation in increasing order of penetrating power is? Alpha, Beta and Gamma
Radioactive tracers are useful in? medical problems
Created by: bcalvert
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