Physics P1 4.4 Energy and the environment.

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What does burning fossil fuels produce?
Greenhouse gases that cause global warming.
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What do nuclear fuels produce?
Radioactive waste.
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What can using renewable energy resources have an affect on?
Plant and animal life.
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What kind of energy resources are coal, oil, gas and uranium?
Non-renewable.
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What is meant by non-renewable?
The rate at which they are being used up is very much faster than the rate at which they are produced.
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What will probably happen to oil and gas in the next fifty years or so?
They will probably run out although coal should last much longer.
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What is meant by renewable?
Renewable energy resources will not run out because they can be produced as fast as they are used.
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Why are scientists investigating the environmental impact of using fossil fuels?
To find ways to reduce the environmental impact of using fossil fuels, e.g. sulfur can be removed from fuel before burning and carbon dioxide is captured and stored in oil/gas fields rather than released into the atmosphere by power stations.
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What are the advantages of using coal?
Bigger reserves than the other fossil fuels and reliable.
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What are the disadvantages of using coal?
Non-renewable, production of CO_2 greenhouse gas and SO_2 which causes acid rain.
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What are the advantages of using oil?
Reliable.
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What are the disadvantages of using oil?
Non-renewable, production of CO_2 greenhouse gas and SO_2 causing acid rain.
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What are the advantages of using gas?
Reliable.
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What are the disadvantages of using gas?
Non-renewable and production of CO_2 greenhouse gas.
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What are the advantages of nuclear energy?
No production of polluting gases and it is reliable.
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What are the disadvantages of nuclear energy?
Non-renewable, produces hazardous nuclear waste which is difficult to dispose of safely and there is a small risk of a big nuclear accident.
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What are the advantages of wind energy?
Renewable, no production of polluting gases and it is a free energy resource.
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What are the disadvantages of wind energy?
Requires many large turbines and is not reliable because the wind does not always blow.
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What are the advantages of energy from falling water?
Renewable, no production of polluting gases, reliable in wet areas and it is a free energy resource.
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What are the disadvantages of energy from falling water?
Only works in wet, hilly areas and damming the areas causes flooding and affects the local ecology.
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What are the advantages of wave energy?
Renewable, no production of polluting gases and it is a free energy resource.
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What are the disadvantages of wave energy?
Can be hazardous to boats and is not reliable.
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What are the advantages of energy from tides?
Renewable, no production of polluting gases, reliable because the tides are always twice a day and it is a free energy resource.
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What are the disadvantages of energy from tides?
Only a few river estuaries are suitable and building a barrage affects the local ecology.
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What are the advantages of solar energy?
Renewable, no production of polluting gases, reliable in hot countries during the daytime and it is a free energy resource.
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What are the disadvantages of solar energy?
Solar cells only produce a small amount of electricity and are unreliable in less sunny countries.
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What are the advantages of geothermal energy?
Renewable, no production of polluting gasses and it is a free energy resource.
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What are the disadvantages of geothermal energy?
Only economically viable in a very few places, drilling through large depth of rock is difficult and expensive.
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What type of area would be most suitable for a wind farm?
A large flat area of high ground.
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What is the difference between a renewable energy resource and a non-renewable energy resource?
A renewable energy source is produced as fast as it is used, whereas a non-renewable energy source is one that is used at a much faster rate than it is produced.
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Which gas, released by the burning of coal, causes acid rain?
Sulfur dioxide.
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**IF YOU ARE ASKED TO DISCUSS ENERGY RESOURCES REMEMBER THAT THEY ALL HAVE ADVANTAGES AND DISADVANTAGES AND YOU MUST INCLUDE BOTH**
**
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Other cards in this set

Card 2

Front

What do nuclear fuels produce?

Back

Radioactive waste.

Card 3

Front

What can using renewable energy resources have an affect on?

Back

Preview of the front of card 3

Card 4

Front

What kind of energy resources are coal, oil, gas and uranium?

Back

Preview of the front of card 4

Card 5

Front

What is meant by non-renewable?

Back

Preview of the front of card 5
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