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physics year 9 > energy resources > Flashcards

energy resources Flashcards

1
Q

What are energy resources used for?

A

Generating electricity, heating, and transport

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2
Q

What is a major environmental concern associated with some energy resources?

A

They produce CO₂, leading to global warming

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3
Q

What is a characteristic of renewable energy resources?

A

They can be replenished as they are used

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4
Q

What is a pro of using wind energy?

A

Does not produce CO₂

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5
Q

What is a con of wind energy?

A

Not reliable, turbines make noise and spoil the view

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6
Q

What is a pro of solar energy?

A

Does not produce CO₂

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7
Q

What is a con of solar energy?

A

Doesn’t work if the sun isn’t shining, solar panels are expensive

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8
Q

What is a pro of wave energy?

A

Does not produce CO₂

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9
Q

What is a con of wave energy?

A

Doesn’t work if the sea is calm or too rough

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10
Q

What is a pro of tidal energy?

A

Does not produce CO₂, tides are predictable

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11
Q

What is a pro of biomass/biofuel?

A

The fuel is cheap, we won’t run out of waste

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12
Q

What is a pro of hydroelectric power?

A

No fuel costs, provides immediate response to sudden increase in demand for electricity

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13
Q

What is a pro of geothermal energy?

A

Does not produce CO₂, cheap to run

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14
Q

What are non-renewable energy resources?

A

Resources that will eventually run out

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15
Q

What is a pro of fossil fuels?

A

Reliable, provides immediate response to sudden increase in demand for electricity

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16
Q

What is a con of fossil fuels?

A

Produce CO₂, which is a greenhouse gas and can contribute to global warming

17
Q

What is a pro of nuclear energy?

A

Reliable, does not produce CO₂

18
Q

What is a con of nuclear energy?

A

Radioactive waste is expensive to dispose of safely

19
Q

Fill in the blank: Farmers grow crops for fuel, so there may not be enough _______ grown.

A

food

20
Q

What is a con of hydroelectric power?

A

Expensive to build, dams flood farmland, rotting vegetation can release carbon dioxide and methane

21
Q

What is a con of tidal energy?

A

There aren’t many places in the world which are suitable

22
Q

True or False: Renewable energy resources do not produce CO₂.

A

True

physics year 9 (1 decks)

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