Renewable Energy Flashcards

1
Q

What are fossil fuels?

A

Remains of dead organisms (e.g. coal, oil, natural gases)

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2
Q

What is nuclear power?

A

Steam needed to drive turbines is created in a nuclear reactor

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3
Q

What is non-renewable energy sources?

A

Sources that will eventually run out. E.g. fossil fuels + nuclear power

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4
Q

What is renewable energy sources?

A

Sources that won’t run out and will replenish themselves (e.g. wind, solar, hydro electric, biomass)

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5
Q

What does solar panels do?

A

They convert sun energy into electricity

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6
Q

What are the advantages of solar pannels?

A

Sunlight won’t run out for a long time
No waste products

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7
Q

What are the disadvantages of solar panels?

A

Don’t work at night
Installation cost is expensive

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8
Q

What are the disadvantages of wind turbines?

A

Noisy
Ruin landscape

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8
Q

What does wind turbines do?

A

They catch wind and turn it into energy

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9
Q

What does hydro electric dams do?

A

They hold water in a dam which is released which turns turbines creating energy

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10
Q

What are the advantages of wind turbines?

A

No waste of gases

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11
Q

What are the advantages of hydro electric dams?

A

Clean
Sustainable

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12
Q

What are the disadvantages of hydro electric dams?

A

Destroys habitats
Can cause flooding

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13
Q

What are the advantages of biomass?

A

Readily available
Uses up carbon dioxide

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14
Q

What does biomass do?

A

Fuel is created from crops, scrap wood and animal waste

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15
Q

What are the disadvantages of biomass?

A

Very expensive way of producing energy

16
Q

What does batteries do?

A

Convert energy into electricity

16
Q

What does kinetic pumped storage systems do?

A

Store energy in water form - energy is pumped from a low to a high reservoir which is released to turn turbines which creates energy

16
Q

Why are rechargeable batteries popular?

A

Rechargeable batteries are popular as it can be used multiple times which reduces cost and waste at landfill