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Its use has declined because of environmental concerns, competition from gas, and the growth of renewable energy."},{"text":"Natural gas.","correct":false,"explanation":"Natural gas became important later, particularly for electricity generation and heating. The source historically associated most strongly with UK heavy industry and early electricity generation is coal."},{"text":"Oil.","correct":false,"explanation":"Oil remains important mainly for transport rather than UK electricity and heavy industry. Coal powered industrial processes and electricity generation on a much larger historical scale."},{"text":"Wind.","correct":false,"explanation":"Wind is now the UK’s biggest renewable electricity source, but it was not historically central to heavy industry. Coal supplied concentrated, reliable energy for factories and power stations."}]},{"id":"689fc539-3707-4ee9-8f79-45ae41f43021","cardType":"basic","points":1,"front":"Which fossil fuel is still heavily used for UK transport?","back":"Oil.","mcqOptions":[{"text":"Oil.","correct":true,"explanation":"Oil remains heavily used in UK transport because petrol, diesel, and aviation fuels are made from it. Transport is still much more dependent on oil than on coal or gas."},{"text":"Natural gas.","correct":false,"explanation":"Natural gas is widely used for heating and electricity generation, but oil remains the dominant fossil fuel in transport. Cars, lorries, ships, and aircraft commonly use oil-based fuels."},{"text":"Coal.","correct":false,"explanation":"Coal use in the UK has fallen greatly and it is no longer the main transport fuel. Oil-based petrol, diesel, and aviation fuel remain much more important."},{"text":"Uranium.","correct":false,"explanation":"Uranium fuels nuclear power stations, not conventional cars, lorries, or aircraft. UK transport is still heavily dependent on oil-derived fuels such as petrol, diesel, and kerosene."}]},{"id":"9d78c894-bafb-435e-956b-96164e6ea4e1","cardType":"basic","points":1,"front":"Which fossil fuel is widely used for UK home heating?","back":"Natural gas.","mcqOptions":[{"text":"Natural gas.","correct":true,"explanation":"Natural gas is widely used in UK homes for space heating and cooking. Gas can be distributed through pipelines and burns relatively cleanly compared with coal or oil."},{"text":"Coal.","correct":false,"explanation":"Coal was once used for domestic heating but is now uncommon because it produces substantial pollution and carbon dioxide. Natural gas is the widely used fossil fuel for UK home heating."},{"text":"Oil.","correct":false,"explanation":"Some homes use heating oil, especially in areas without gas pipelines, but it is not the fossil fuel widely used across UK homes. Natural gas is the standard answer."},{"text":"Wind.","correct":false,"explanation":"Wind generates electricity but does not directly provide the fossil-fuel-based heating used in most UK homes. Natural gas has traditionally supplied widespread domestic space heating."}]},{"id":"e8bf98b1-6db2-41d1-bcf2-bcb2058598e7","cardType":"basic","points":1,"front":"Which renewable source is the biggest UK renewable electricity source?","back":"Wind.","mcqOptions":[{"text":"Wind.","correct":true,"explanation":"Wind is the UK’s biggest renewable electricity source because the country has strong, consistent winds and extensive onshore and offshore turbine capacity. Offshore wind has expanded particularly rapidly."},{"text":"Solar.","correct":false,"explanation":"Solar power has grown substantially in the UK, but relatively limited sunshine and seasonal variation mean it produces less renewable electricity overall than wind."},{"text":"Hydroelectric.","correct":false,"explanation":"Hydroelectricity contributes renewable electricity, especially in mountainous Scotland, but the UK has fewer suitable rivers and valleys than countries where hydropower dominates. Wind produces more."},{"text":"Biomass.","correct":false,"explanation":"Biomass is an important renewable source, but it is not the UK’s largest renewable electricity source. Wind has greater generating capacity and produces more renewable electricity overall."}]},{"id":"cc7797c1-2673-4420-b66d-28490fa4b4ca","cardType":"cloze","points":null,"front":"A renewable energy source is naturally replaced on a [ ].","back":"A renewable energy source is naturally replaced on a human timescale.","mcqOptions":[{"text":"human timescale","correct":true,"explanation":"Renewable resources are replenished naturally within a human timescale, so their supply can be maintained if the rate of use does not exceed the rate of replacement."},{"text":"daily timescale","correct":false,"explanation":"Some renewable processes, such as sunlight and wind, occur daily, but not every renewable resource is replaced each day. The correct definition refers to a human timescale."},{"text":"geological timescale","correct":false,"explanation":"A geological timescale is far longer than a human lifetime and is associated with resources that form too slowly to replace quickly. Renewable resources are replaced on a human timescale."},{"text":"seasonal timescale","correct":false,"explanation":"Some renewable resources vary seasonally, but seasonal replacement is not the defining criterion. The resource must be naturally replaced within a human timescale to be renewable."}]},{"id":"d48ba6da-d078-4c14-b9a4-bfbbdb62a0c6","cardType":"cloze","points":null,"front":"A non-renewable energy source is [ ] or forms too slowly to be replaced within a human lifetime.","back":"A non-renewable energy source is finite or forms too slowly to be replaced within a human lifetime.","mcqOptions":[{"text":"finite","correct":true,"explanation":"A non-renewable resource is finite or forms too slowly to be replaced within a human lifetime. Once reserves are used, they cannot be replenished quickly enough for continued human use."},{"text":"renewable","correct":false,"explanation":"Renewable resources are naturally replaced within a human timescale, which is the opposite of this definition. The correct term is finite, because non-renewable supplies are limited."},{"text":"unlimited","correct":false,"explanation":"Non-renewable resources have limited supplies rather than unlimited ones. Their reserves can be depleted because natural formation is too slow to replace what people use."},{"text":"recyclable","correct":false,"explanation":"Recyclability describes whether a material can be recovered and reused, not whether its natural supply is replenished. Non-renewable energy sources are finite or form too slowly."}]},{"id":"d0da4f24-48ff-4db0-9ae0-71b4133153ab","cardType":"basic","points":1,"front":"Why is nuclear power classed as non-renewable?","back":"It relies on finite uranium fuel.","mcqOptions":[{"text":"It relies on finite uranium fuel.","correct":true,"explanation":"Nuclear power depends on uranium, a mineral resource with limited reserves. Because uranium is not naturally replenished on a human timescale, nuclear power is classified as non-renewable."},{"text":"It relies on renewable uranium fuel.","correct":false,"explanation":"Uranium is not renewable because geological processes do not replace it on a human timescale. Its finite supply is precisely why nuclear power is classed as non-renewable."},{"text":"It relies on finite coal fuel.","correct":false,"explanation":"Coal is finite, but it is burned in fossil-fuel power stations rather than used as the fuel in nuclear reactors. Nuclear power is non-renewable because it uses finite uranium."},{"text":"It relies on naturally replenished uranium fuel.","correct":false,"explanation":"Uranium is not naturally replenished quickly enough to replace the amount extracted for nuclear power. Its limited reserves, rather than rapid natural replacement, make nuclear non-renewable."}]},{"id":"06bad4c8-c0f3-48a8-ae2c-0594ed68e243","cardType":"basic","points":2,"front":"Why is nuclear power low-carbon during operation but not renewable?","back":"It uses finite uranium, despite low operational emissions.","mcqOptions":[{"text":"It uses finite uranium, despite low operational emissions.","correct":true,"explanation":"Nuclear reactors produce very little carbon dioxide during operation, but they use finite uranium fuel. Low operational emissions therefore make nuclear low-carbon, not renewable."},{"text":"It uses renewable uranium, despite low operational emissions.","correct":false,"explanation":"Low operational emissions are correct, but uranium is not renewable. It forms too slowly to replace human use, so the correct description is finite uranium."},{"text":"It uses finite coal, despite low operational emissions.","correct":false,"explanation":"Coal is finite, but nuclear reactors do not use coal as their fuel. They use uranium, which explains the non-renewable classification while producing low operational emissions."},{"text":"It uses finite uranium, despite high operational emissions.","correct":false,"explanation":"Uranium is finite, but nuclear power has low operational carbon emissions compared with fossil fuels. The error is reversing its emissions characteristic, not its fuel classification."}]},{"id":"92eee0fa-538d-4e9b-966e-6e53ac65a99c","cardType":"basic","points":1,"front":"What happens when fossil fuels are burnt?","back":"They release carbon dioxide, a greenhouse gas.","mcqOptions":[{"text":"They release carbon dioxide, a greenhouse gas.","correct":true,"explanation":"Burning fossil fuels releases carbon dioxide into the atmosphere. Carbon dioxide is a greenhouse gas that absorbs outgoing heat and contributes to enhanced global warming."},{"text":"They absorb carbon dioxide, a greenhouse gas.","correct":false,"explanation":"Fossil fuels do not absorb carbon dioxide when burnt; combustion releases it. The correct answer is that they release carbon dioxide, a greenhouse gas, increasing the enhanced greenhouse effect."},{"text":"They release oxygen, a greenhouse gas.","correct":false,"explanation":"Combustion uses oxygen rather than producing it, and oxygen is not a greenhouse gas. The correct answer is carbon dioxide, which is released and contributes to global warming."},{"text":"They release water vapour, a greenhouse gas.","correct":false,"explanation":"Water vapour can be a greenhouse gas, but it is not the key emission identified from burning fossil fuels in this context. The correct answer is carbon dioxide."}]},{"id":"5ccb9e2a-2cd2-4377-b39f-71818e48ab7a","cardType":"basic","points":1,"front":"What condition must biomass meet to count as renewable?","back":"It must be managed sustainably.","mcqOptions":[{"text":"It must be managed sustainably.","correct":true,"explanation":"Biomass is renewable only when it is replaced at least as quickly as it is used. Sustainable management prevents the resource from being permanently depleted."},{"text":"It must be managed profitably.","correct":false,"explanation":"Profitability affects whether biomass is economically attractive, not whether it can be renewed. The correct condition is sustainable management, ensuring new growth replaces what is harvested."},{"text":"It must be managed locally.","correct":false,"explanation":"Biomass does not have to be produced or controlled locally to count as renewable. It must be managed sustainably so harvesting does not exceed natural or planned replacement."},{"text":"It must be managed efficiently.","correct":false,"explanation":"Efficient use reduces waste but does not guarantee that biomass supplies are replenished. The correct answer is sustainably, meaning the resource is replaced as it is used."}]},{"id":"f58cd794-e429-41d6-8716-9a3ad8443a94","cardType":"basic","points":1,"front":"Where is UK offshore wind especially important?","back":"The North Sea and Irish Sea.","mcqOptions":[{"text":"The North Sea and Irish Sea.","correct":true,"explanation":"The North Sea and Irish Sea have strong, reliable winds and extensive shallow coastal waters, making them especially important areas for UK offshore wind development."},{"text":"The English Channel and North Sea.","correct":false,"explanation":"The North Sea is important, but the English Channel is not the paired area usually identified for UK offshore wind. The correct pair is the North Sea and Irish Sea."},{"text":"The Irish Sea and Bay of Biscay.","correct":false,"explanation":"The Irish Sea is important for UK offshore wind, but the Bay of Biscay lies mainly beyond the UK’s waters. The correct UK pair is the North Sea and Irish Sea."},{"text":"The North Atlantic and English Channel.","correct":false,"explanation":"These areas are tempting because the UK has a windy Atlantic location, but they are not the standard locations named here. The correct answer is the North Sea and Irish Sea."}]},{"id":"92fb0a19-1c92-4798-87df-b510fcbfb2db","cardType":"basic","points":1,"front":"Which UK region is especially associated with oil and gas?","back":"The North Sea.","mcqOptions":[{"text":"The North Sea.","correct":true,"explanation":"The UK’s major offshore oil and gas reserves are located beneath the North Sea. Production has historically been concentrated there, especially near Scotland and eastern England."},{"text":"The Irish Sea.","correct":false,"explanation":"The Irish Sea has some energy resources, but it is not the UK region especially associated with oil and gas. The correct answer is the North Sea."},{"text":"The English Channel.","correct":false,"explanation":"The English Channel is not the main UK oil and gas region. The North Sea contains the major offshore reserves associated with UK petroleum production."},{"text":"The Scottish Highlands.","correct":false,"explanation":"The Scottish Highlands are strongly associated with hydroelectric power and renewable energy, not chiefly with UK oil and gas. The correct region is the North Sea."}]},{"id":"454d640f-2d55-4682-9460-6d49ff3d32ac","cardType":"basic","points":2,"front":"Why do the Scottish Highlands and parts of Wales suit hydroelectric power?","back":"They are wetter and more mountainous.","mcqOptions":[{"text":"They are wetter and more mountainous.","correct":true,"explanation":"High rainfall provides plentiful water, while mountainous relief creates steep gradients. Together, these conditions increase the potential energy available for hydroelectric power generation."},{"text":"They are drier and more mountainous.","correct":false,"explanation":"Mountainous relief helps hydroelectric power, but dry conditions reduce river flow and water supply. The correct combination is wetter and more mountainous."},{"text":"They are wetter and more flat.","correct":false,"explanation":"Wet conditions provide water, but flat land gives rivers less height difference and therefore less potential energy. The correct answer is wetter and more mountainous."},{"text":"They are drier and more flat.","correct":false,"explanation":"Both features reduce hydroelectric potential: dry areas have less water and flat areas provide less relief for falling water. The correct answer is wetter and more mountainous."}]},{"id":"5a40f397-e511-4d76-9d78-304bcf3fb097","cardType":"basic","points":1,"front":"Why is southern England more suitable for solar farms?","back":"It generally receives more sunshine.","mcqOptions":[{"text":"It generally receives more sunshine.","correct":true,"explanation":"Southern England is generally nearer the equator and receives higher solar radiation and more sunshine than northern parts of the UK, improving solar farm output."},{"text":"It generally receives more rainfall.","correct":false,"explanation":"Rainfall can reduce sunlight reaching solar panels and is not the reason southern England is more suitable. The correct factor is that it generally receives more sunshine."},{"text":"It generally receives stronger winds.","correct":false,"explanation":"Wind strength is relevant to wind farms, not the main reason for locating solar farms in southern England. The correct answer is greater sunshine."},{"text":"It generally has more mountains.","correct":false,"explanation":"Mountainous terrain is more relevant to hydroelectric power and can make solar farm construction difficult. Southern England is more suitable because it receives more sunshine."}]},{"id":"af0fbdf5-11d4-415b-b23f-dc3795f1f597","cardType":"cloze","points":null,"front":"Physical factors affecting UK energy availability include wind speed, relief, rainfall, geology, [ ] and tidal range.","back":"Physical factors affecting UK energy availability include wind speed, relief, rainfall, geology, sunlight and tidal range.","mcqOptions":[{"text":"sunlight","correct":true,"explanation":"Sunlight is a physical factor because the amount of solar radiation varies naturally between locations and affects how much electricity solar energy systems can generate."},{"text":"temperature","correct":false,"explanation":"Temperature can influence equipment performance, but it is not the physical factor listed in this set. The correct term is sunlight, which determines available solar energy."},{"text":"soil fertility","correct":false,"explanation":"Soil fertility affects agriculture and some biomass production, but it is not the intended factor in this list. The correct term is sunlight, a direct energy input."},{"text":"air pressure","correct":false,"explanation":"Air pressure is a weather variable but is not the listed factor affecting UK energy availability here. The correct term is sunlight, which controls solar energy potential."}]},{"id":"27dcc60f-325e-480b-9b5a-92d03499ebd6","cardType":"cloze","points":null,"front":"Human factors affecting UK energy availability include cost, planning permission, technology, grid connection, local opposition and [ ].","back":"Human factors affecting UK energy availability include cost, planning permission, technology, grid connection, local opposition and government policy.","mcqOptions":[{"text":"government policy","correct":true,"explanation":"Government policy affects energy availability through subsidies, targets, regulations and planning decisions. These measures can encourage or restrict the development of particular energy sources."},{"text":"consumer demand","correct":false,"explanation":"Consumer demand can influence energy markets, but it is not the human factor named in this list. The correct term is government policy, which shapes energy development directly."},{"text":"fuel efficiency","correct":false,"explanation":"Fuel efficiency affects how much energy is needed, rather than being the listed factor controlling energy availability. The correct term is government policy, including targets and regulations."},{"text":"population density","correct":false,"explanation":"Population density may influence demand and opposition to developments, but it is not the intended final factor. The correct term is government policy, which can support or limit projects."}]},{"id":"a1f8b970-04e3-4908-9940-aabbde1aa7e0","cardType":"basic","points":2,"front":"What does total energy supply include that electricity generation does not?","back":"Heating, transport and industry energy use.","mcqOptions":[{"text":"Heating, transport and industry energy use.","correct":true,"explanation":"Total energy supply covers all major energy uses across the economy, including heating, transport and industry, whereas electricity generation measures only electricity produced."},{"text":"Lighting, appliances and communications energy use.","correct":false,"explanation":"These are electricity-generation activities rather than the wider uses counted in total energy supply. The correct additions are heating, transport and industry energy use."},{"text":"Homes, offices and shops energy use.","correct":false,"explanation":"Electricity generation is not expanded by counting only domestic uses. Total energy supply includes heating, transport and industry energy use across the economy."},{"text":"Mining, refining and distribution energy use.","correct":false,"explanation":"These describe sectors involved in producing or distributing energy, not the main extra uses measured by total energy supply. The correct uses are heating, transport and industry."}]},{"id":"76e07b37-0df0-4402-9229-c6652e9fb6d5","cardType":"basic","points":2,"front":"Why do non-renewables still provide most UK total energy?","back":"Transport and heating still use much oil and gas.","mcqOptions":[{"text":"Transport and heating still use much oil and gas.","correct":true,"explanation":"Transport and heating remain heavily dependent on oil and gas, so non-renewable fuels still make up most UK total energy use despite renewable electricity growth."},{"text":"Transport and heating still use much coal and electricity.","correct":false,"explanation":"Coal use has declined substantially and is not the main fuel for UK transport and heating. The correct explanation is continued heavy use of oil and gas."},{"text":"Transport and heating now use much wind and solar power.","correct":false,"explanation":"Renewables are important in electricity generation but do not yet dominate transport and heating. Those sectors still use much oil and gas, keeping non-renewables dominant overall."},{"text":"Transport and heating still use much nuclear power and hydrogen.","correct":false,"explanation":"Nuclear power contributes to electricity generation, not directly to most transport and heating demand. Continued oil and gas use explains why non-renewables remain dominant."}]},{"id":"f305aa2e-27d1-44bb-9619-5e048469eda2","cardType":"cloze","points":null,"front":"Renewables have recently provided roughly [ ] of UK electricity generation.","back":"Renewables have recently provided roughly 40-45% of UK electricity generation.","mcqOptions":[{"text":"40-45%","correct":true,"explanation":"Recent UK data put renewables at roughly 40-45% of electricity generation, reflecting strong growth in wind and other renewable sources."},{"text":"55-60%","correct":false,"explanation":"This overestimates the recent renewable share of UK electricity generation. The approximate figure is 40-45%, not a majority such as 55-60%."},{"text":"25-30%","correct":false,"explanation":"This is too low for the recent UK renewable electricity share. The expected approximate range is 40-45%, following substantial growth in renewable generation."},{"text":"75-80%","correct":false,"explanation":"This range suggests almost all electricity comes from renewables, which is not the recent UK position. Renewables have provided roughly 40-45%."}]},{"id":"6d58ba5a-aa47-4fdc-bc22-85c15f899a9a","cardType":"basic","points":1,"front":"Why are gas-fired power stations useful when wind speeds fall?","back":"They can change output quickly.","mcqOptions":[{"text":"They can change output quickly.","correct":true,"explanation":"Gas-fired stations can adjust their electricity output quickly, allowing them to respond when wind generation falls and helping balance the grid."},{"text":"They can produce electricity cheaply.","correct":false,"explanation":"Gas-fired stations are useful because they can change output quickly, not because they necessarily produce the cheapest electricity at every time of day."},{"text":"They produce electricity with no emissions.","correct":false,"explanation":"Gas stations do emit less carbon dioxide than coal in many cases, but their key role here is responding quickly when wind speeds fall."},{"text":"They rely on strong winds.","correct":false,"explanation":"Gas-fired power stations do not depend on strong wind conditions. Their advantage is that they can change output quickly to replace falling wind generation."}]},{"id":"411f1c2e-f0b5-426d-8f32-ad79c20a59ce","cardType":"basic","points":1,"front":"What is the formula for percentage contribution to an energy mix?","back":"$$\\frac{\\text{energy from one source}}{\\text{total energy supply}} \\times 100$","mcqOptions":[{"text":"$$\\frac{\\text{energy from one source}}{\\text{total energy supply}} \\times 100$","correct":true,"explanation":"Percentage contribution compares energy from one source with total energy supply, then multiplies the fraction by 100 to express it as a percentage."},{"text":"$$\\frac{\\text{total energy supply}}{\\text{energy from one source}} \\times 100$","correct":false,"explanation":"Reversing the numerator and denominator compares total supply with one source, producing a reciprocal rather than that source’s percentage contribution."},{"text":"$$\\frac{\\text{energy from one source}}{\\text{total energy supply}}$","correct":false,"explanation":"The source’s share must be multiplied by 100 to convert the fraction into a percentage. Omitting that step leaves the result as a decimal fraction."},{"text":"$$\\frac{\\text{energy from one source} + \\text{total energy supply}}{100}$","correct":false,"explanation":"Adding the source energy to total supply does not measure a share. Percentage contribution requires division by total supply followed by multiplication by 100."}]},{"id":"21ef8d64-c22b-4e34-a9d1-3dc04abb8338","cardType":"basic","points":1,"front":"A source provides 132 TWh out of 300 TWh. What is its percentage contribution?","back":"44%.","mcqOptions":[{"text":"44%.","correct":true,"explanation":"Dividing 132 TWh by 300 TWh gives 0.44, and multiplying by 100 converts this fraction into a percentage contribution of 44%."},{"text":"42%.","correct":false,"explanation":"This result comes from using 126 TWh or making a similar subtraction or division slip. The correct calculation is $132 \\div 300 \\times 100 = 44\\%$."},{"text":"46%.","correct":false,"explanation":"This slightly overestimates the share, commonly by rounding the numerator or denominator incorrectly. Using the stated values gives $132 \\div 300 \\times 100 = 44\\%$."},{"text":"40%.","correct":false,"explanation":"This can result from treating 132 as a percentage of 330 or using an incorrect total. The stated total is 300 TWh, giving a contribution of 44%."}]},{"id":"4ea017cb-522b-4ad0-8f45-c8042d94cbe8","cardType":"basic","points":1,"front":"In the example, renewables are 44% and gas is 32%. How much larger is renewables’ share?","back":"12 percentage points.","mcqOptions":[{"text":"12 percentage points.","correct":true,"explanation":"The difference between the shares is $44 - 32 = 12$, so renewables’ share is 12 percentage points larger than gas’s share."},{"text":"12%","correct":false,"explanation":"12% describes a percentage difference or ratio, not the arithmetic difference between two percentage shares. Subtracting 32% from 44% gives 12 percentage points."},{"text":"14 percentage points","correct":false,"explanation":"This overstates the gap by two percentage points. Comparing the shares directly gives $44 - 32 = 12$ percentage points."},{"text":"76 percentage points","correct":false,"explanation":"This is the combined share of renewables and gas, not the difference between them. The gap is found by subtraction: $44 - 32 = 12$ percentage points."}]},{"id":"755d543b-2359-4e6d-92da-3e401cf329c6","cardType":"basic","points":2,"front":"Why has UK coal use declined sharply?","back":"It produces high carbon dioxide emissions and air pollution.","mcqOptions":[{"text":"It produces high carbon dioxide emissions and air pollution.","correct":true,"explanation":"Coal use has fallen sharply because burning coal produces high carbon dioxide emissions and air pollution, encouraging its replacement by cleaner or lower-carbon sources."},{"text":"It produces high oxygen emissions and air pollution.","correct":false,"explanation":"Coal does not produce high oxygen emissions. Its decline is linked to high carbon dioxide emissions and air pollution from burning it."},{"text":"It produces low carbon dioxide emissions and air pollution.","correct":false,"explanation":"Coal combustion is not pollution-free. The key reason for its decline is that it produces high carbon dioxide emissions and air pollution."},{"text":"It produces high water vapour emissions and air pollution.","correct":false,"explanation":"Coal is not mainly being replaced because of high water vapour emissions. Its major environmental problems are high carbon dioxide emissions and air pollution."}]},{"id":"4e9a518b-1c01-4fe3-a3df-e36bbe680d1d","cardType":"cloze","points":null,"front":"The UK’s last coal-fired power station closed in [ ].","back":"The UK’s last coal-fired power station closed in 2024.","mcqOptions":[{"text":"2024","correct":true,"explanation":"Ratcliffe-on-Soar, the UK’s final operational coal-fired power station, closed in September 2024, ending roughly 142 years of coal-generated electricity in the UK."},{"text":"2023","correct":false,"explanation":"Ratcliffe-on-Soar was still generating electricity during 2023. It closed in September 2024, becoming the UK’s last coal-fired power station to cease operations."},{"text":"2022","correct":false,"explanation":"Several coal-fired stations had closed by 2022, but Ratcliffe-on-Soar remained operational. Its closure in September 2024 marked the end of UK coal-fired electricity generation."},{"text":"2025","correct":false,"explanation":"The closure was not delayed until 2025. The UK’s last coal-fired power station, Ratcliffe-on-Soar, stopped generating electricity in September 2024."}]},{"id":"13e00595-0916-486f-9acd-0fcd201527be","cardType":"basic","points":2,"front":"Why has UK wind power grown?","back":"The UK has strong wind resources, especially offshore.","mcqOptions":[{"text":"The UK has strong wind resources, especially offshore.","correct":true,"explanation":"The UK experiences frequent and powerful winds, while its surrounding seas provide extensive locations for turbines. These favourable resources allow wind farms to generate substantial amounts of electricity."},{"text":"The UK has strong tidal resources, especially in estuaries.","correct":false,"explanation":"Strong tidal resources support tidal energy rather than explaining the growth of wind power. UK wind generation has expanded because winds are frequent and powerful, especially offshore."},{"text":"The UK has intense solar radiation, especially in winter.","correct":false,"explanation":"The UK does not receive unusually intense solar radiation, particularly in winter. Wind power has grown because the country has strong wind resources, especially over surrounding seas."},{"text":"The UK has large uranium reserves, especially offshore.","correct":false,"explanation":"Uranium resources would be relevant to nuclear power, not wind generation, and the UK does not possess large offshore uranium reserves. Strong offshore winds explain wind power’s growth."}]},{"id":"5be8f031-1517-4ef2-82aa-bef7abd532a8","cardType":"basic","points":1,"front":"Why do shallow seas help UK offshore wind development?","back":"They make offshore wind farms easier to build.","mcqOptions":[{"text":"They make offshore wind farms easier to build.","correct":true,"explanation":"Shallow water allows turbine foundations to be installed in the seabed more easily and cheaply. This makes constructing offshore wind farms more practical than in deep water."},{"text":"They make offshore turbines produce constant electricity.","correct":false,"explanation":"Sea depth does not make electricity generation constant because wind speeds still vary. Shallow seas help mainly by making turbine foundations easier and cheaper to build."},{"text":"They remove the need for turbine foundations.","correct":false,"explanation":"Offshore turbines still need secure foundations anchored to the seabed. Shallow water helps because these foundations are easier and less costly to construct."},{"text":"They create stronger and more reliable winds.","correct":false,"explanation":"Wind strength is primarily determined by atmospheric conditions and surface friction, not sea depth. Shallow seas help by making offshore wind farms easier to construct."}]},{"id":"549635e0-699a-41a6-8495-f380d6f26d6b","cardType":"basic","points":1,"front":"What is one energy security risk of relying on gas?","back":"Gas prices can rise quickly.","mcqOptions":[{"text":"Gas prices can rise quickly.","correct":true,"explanation":"Gas prices can change rapidly because of global demand, supply disruptions and international conflicts. Sudden increases can make electricity and heating less affordable, weakening energy security."},{"text":"Gas prices remain fixed permanently.","correct":false,"explanation":"Gas prices are set by changing national and international markets rather than being permanently fixed. Their ability to rise rapidly creates a significant affordability and energy security risk."},{"text":"Gas imports are guaranteed indefinitely.","correct":false,"explanation":"Imported gas is vulnerable to political disputes, conflicts and supply interruptions, so it is not guaranteed indefinitely. This uncertainty can also cause gas prices to rise quickly."},{"text":"Gas supplies cannot be stored.","correct":false,"explanation":"Gas can be stored in facilities such as underground caverns and tanks, although capacity is limited. The relevant security risk is that gas prices can rise rapidly."}]},{"id":"4308d6f5-1c18-404c-a3c8-7307b06b380c","cardType":"cloze","points":null,"front":"Energy security means having a reliable, affordable and [ ] energy supply.","back":"Energy security means having a reliable, affordable and sufficient energy supply.","mcqOptions":[{"text":"sufficient","correct":true,"explanation":"An energy-secure country must have enough energy to satisfy demand as well as ensuring that supplies are dependable and affordable. Therefore, the missing requirement is sufficient."},{"text":"renewable","correct":false,"explanation":"Energy security does not require every source to be renewable; a country may use fossil fuels or nuclear power. It requires a reliable, affordable and sufficient supply."},{"text":"domestic","correct":false,"explanation":"Energy can be secure even when some of it is imported, provided supplies are dependable and affordable. The missing requirement is that the overall supply must be sufficient."},{"text":"carbon-free","correct":false,"explanation":"A carbon-free supply supports environmental goals, but it is not part of this definition of energy security. The supply must instead be reliable, affordable and sufficient."}]},{"id":"74a6ba18-3c8c-4893-a9f1-c2d21daee429","cardType":"basic","points":1,"front":"What is one disadvantage of nuclear power stations?","back":"They are expensive and slow to build.","mcqOptions":[{"text":"They are expensive and slow to build.","correct":true,"explanation":"Nuclear stations involve complex engineering, extensive safety systems and long construction periods. These features make them very expensive and slow to build compared with many alternatives."},{"text":"They require strong winds to generate electricity.","correct":false,"explanation":"Dependence on strong winds is a disadvantage of wind turbines, not nuclear stations. Nuclear power’s relevant disadvantage is that stations are expensive and slow to build."},{"text":"They only work during daylight hours.","correct":false,"explanation":"Reliance on daylight applies to solar panels rather than nuclear stations, which can generate continuously. Nuclear facilities are instead expensive and take many years to construct."},{"text":"They use tides that vary each day.","correct":false,"explanation":"Changing tides affect tidal power installations, not nuclear stations. A genuine disadvantage of nuclear power is the high cost and long construction time of its stations."}]}]}],"examCountdown":{"examDate":"2027-05-18","paperLabel":"Paper 1"},"heading":"UK energy sources","title":"UK energy sources Flashcards","topbar":{"backHref":"/gcse/geography/ocr/a/flashcards"},"topicSidebar":"$L38"}]}],"topicId":"f8c80a23-efeb-58e8-b377-2080c5d81ab6","walled":"$L39"}],"$L3a","$L3b"]