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Physics > P1 Energy Resources > Flashcards

P1 Energy Resources Flashcards

1
Q

Define renewable

A

Can be replenished as it is used

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2
Q

Define reliable

A

Can consistently be produces and meet demand of consumers

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3
Q

What is coal power?

A

A non-renewable fossil fuel

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4
Q

How is coal power produced?

A

Coal is burned in a furnace, water is heated in the boiler to make steam which turns the turbine which turns the generator to produce electricity.

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5
Q

What are pros of coal power?

A

Lasts longer than gas, reliable, quite cheap, widely available

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6
Q

What are cons of coal power?

A

Produces the most carbon dioxide and sulphur dioxide, non-renewable

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7
Q

What is nuclear power?

A

A nuclear reactor uses uranium to produce lots of heat. This heat turns water into steam, which drives a turbine, which drives a generator to produce electricity.

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8
Q

What are pros of nuclear power?

A

No smoke, reliable, very dense fuel, no extra greenhouse gas emissions, no sulfur dioxide produced

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9
Q

What are cons of nuclear power?

A

Risk of meltdown, non-renewable, long start up time, highly radioactive waste, risk of explosion, very expenisve

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10
Q

What are pros of wind power?

A

Renewable, quite cheap

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11
Q

What are cons of wind power?

A

Noise pollution, harms wildlife, visual pollution, location specific

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12
Q

What are pros of hydroelectric power?

A

Stores water, tourism, leisure, construction jobs, renewable, reliable, no carbon dioxide or sulfur dioxide

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13
Q

What are cons of hydroelectric power?

A

Floods a valley, very expensive, location specific, relocates people, can fail

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14
Q

How does hydroelectric power work?

A

Water flows through a pipe in a dam which turns a turbine which drives a generator to produce electricity.

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15
Q

How does tidal power work?

A

Turbine spins due to difference in water height.

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16
Q

What are solar photovoltaic cells?

A

Convert sunlight directly into electricity

17
Q

What are solar heating panels?

A

Heat water using sunlight

18
Q

What are pros of solar power?

A

Renewable, relatively cheap, no carbon dioxide or sulfur dioxide, low maintenance, stored on batteries

19
Q

What are cons of solar power?

A

Not reliable, location specific, lots of land required, few jobs, no land = no power

20
Q

What are pros of tidal power?

A

Renewable, reliable

21
Q

What are cons of tidal power?

A

Harm and damage to wildlife and habitats, only makes power twice a day, not constant, expensive

22
Q

How does wave power work?

A

Movement of waves turns a turbine, driving a generator

23
Q

What are pros of wave power?

A

Renewable, quite reliable, construction jobs, no carbon dioxide produced

24
Q

What are cons of wave power?

A

Could sink, not 100% reliable, could be damaged by storms, visual pollution

25
Q

What is biomass?

A

Some plants can be used to make fuels which are used in vehicles or power stations
Sugar cane is used for ethanol-a fuel
Wood can be burned in place of coal

26
Q

What are pros of biomass?

A

Renewable, removes carbon dioxide when the plants are grown, carbon neutral

27
Q

What are cons of biomass?

A

Takes up lots of land which could be used for food crops, produces carbon dioxide

28
Q

What is geothermal power?

A

Hot rocks under the Earth boil water to produce steam. Steam turns a turbine and a generator.

29
Q

What are pros of geothermal power?

A

No carbon dioxide or sulfur dioxide produces, renewable, reliable

30
Q

What are cons of geothermal power?

A

Very expensive to build, location specific

31
Q

What is energy used for?

A

40% transport
29% domestic

32
Q

What is biofuel?

A

any fuel taken from living or recently living materials, such as animal waste.

33
Q

What is carbon neutral?

A

a biofuel from a living organism that takes in as much carbon dioxide from the atmosphere as is released when the fuel is burned.

34
Q

What are fossil fuels?

A

a fuel formed from the dead remains of organisms over millions of years (e.g. coal, oil, or natural gas).

35
Q

What is the process involved in nuclear power?

A

Nuclear fission

36
Q

What is a reactor core?

A

the thick steel vessel used to contain fuel rods, control rods and the moderator in a nuclear fission reactor.

Physics (17 decks)

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