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Physics > P3- Energy resources > Flashcards

P3- Energy resources Flashcards

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1
Q

3 fossil fuels

A

Coal, oil, gas

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2
Q

9 energy resources

A

Wind, solar, wave, tidal, hydroelectric, geothermal, biofuel, nuclear, fossil fuels

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3
Q

Biofuel energy resource
Definition and explanation

A

A fuel taken from living or recently living organisms
Chemical energy turned into thermal energy, used to create steam to turn a turbine

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4
Q

Biofuel Ads & Dis

A

Ad- Renewable, carbon-neutral
Dis- Large areas of land needed to grow enough trees

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5
Q

Nuclear energy resource
Definition and explanation

A

Energy from unstable atoms such as uranium
The atoms give off heat, used to create steam to turn a turbine

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6
Q

Nuclear Ads and Dis

A

Ad- High energy density per kg of fuel, no CO2 produced
Dis- Non-renewable, produces nuclear waste

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7
Q

Wind power energy resource
Definition and explanation

A

Energy from the wind
Wind turns the blades round, turns the generator

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8
Q

Wind power Ads and Dis

A

Ads- renewable, no CO2 produced
Dis- Unreliable, eye sore

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9
Q

Wave power energy resource
Definition and explanation

A

Energy from sea waves
Movement of waves moves turbine and generates electricity

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10
Q

Wave power Ads and Dis

A

Ads- Renewable, no CO2 produced
Dis- Unreliable-needs waves, can be damaged by storms

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11
Q

Hydroelectric energy resource
Definition and explanation

A

Energy from rivers
Movement from flowing water through dams turns generators

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12
Q

Hydroelectric Ads and Dis

A

Ad- Renewable, no CO2 produced
Dis- Expensive to build a dam, damages local environment

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13
Q

Tidal energy resource
Definition and explanation

A

Energy from sea tides
At high tide, water trapped then released through turbines to generate electricity

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14
Q

Tidal Ads and Dis

A

Ads- Renewable, no CO2 produced
Dis- Expensive, can cause flooding

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15
Q

Solar energy resource
Definition and explanation

A

Energy from the Sun
Solar cells generate electricity using energy from the sun

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16
Q

Solar Ads and Dis

A

Ads- Renewable, no CO2 produced
Dis- Unreliable, needs sunlight, lots needed to be useful

17
Q

Geothermal energy resource
Definition and explanation

A

Energy from the Earth
Water is heated under the Earth, turned into steam, turns a turbine

18
Q

Geothermal Ads and Dis

A

Ads- Renewable, no CO2 produced
Dis- Few places where it works, expensive

19
Q

Renewable energy definition

A

Resources that will never run out and can be replenished in our lifetime

20
Q

Non-renewable definition

A

Resources that cannot be replaced when they are used up

21
Q

What resources are used as a base load?

A

Nuclear and coal

22
Q

2 times when renewable energy is used?

A

-When demand is high
-When demand is low

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