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Physics > Energy Demands > Flashcards

Energy Demands Flashcards

1
Q

What are systems that store? Large amounts of energy called?

A

Energy resources

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2
Q

What are the major energy resources to produce electricity?

A

Fossil fuels nuclear fuel biofuel wind hydroelectricity neural tidal water waves sun

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3
Q

What is fossil fuel?

A

Natural fuel formed by remains of living organisms

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4
Q

What is nuclear fuel ?

A

Radioactive materials

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5
Q

What is hydroelectricity?

A

Electricity generated by water movement

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6
Q

What is geothermal?

A

Energy from heat of the Earth

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7
Q

What are renewable energy sources?

A

Energy sources that are replenished

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8
Q

Where is energy needed in homes?

A

Heating, cooking plus running appliances

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9
Q

Where is energy needed in homes?

A

Heating plus running appliances

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10
Q

Where is energy needed in public services?

A

Running machinery and warming rooms

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11
Q

Why is energy needed for factory and farms?

A

To operate heavy duty machinery plus production chains

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12
Q

Give an example of how producing and distributing electricity can damage the environment

A

Pollution for harmful waste products

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13
Q

What human actions can renewable resources be replenished by?

A

Trees that are cut down for biofuel are replaced by planting new trees

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14
Q

Given a natural process that renewable resources are replenished by

A

Water let through a dam for hydroelectricity is replaced by the water cycle

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15
Q

What is a disadvantage of a renewable energy resource?

A

They are expensive

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16
Q

What is a positive of power stations that use fossil fuels?

A

They are reliable

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17
Q

What Energy store is fossil fuels?

A

Chemical

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18
Q

What are fossil fuels used for?

A

Transport heating electricity generation

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19
Q

What power output does fossil fuels have? Why is this bad ?

A

A high power output, it releases Co2

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20
Q

What energy store is nuclear fuels ?

21
Q

Is nuclear fuels nonrenewable or renewable?

A

Non renewable

22
Q

What are nuclear fuels used for?

A

Electricity generation

23
Q

What type of output power is nuclear fuels? Why is this bad?

A

Very high output power, but it produces radioactive waste

24
Q

What energy store is biofuel?

25
Is biofuel renewable or nonrenewable?
Renewable
26
What is biofuel used for?
Transport heating electricity generation
27
What Power output does biofuel have and why is this a problem?
Medium power output but low impact
28
Power does biofuel have and why is this a problem?
Medium power output but low impact
29
What energy store is wind energy ?
Kinetic energy
30
What is wind energy used for?
Electricity generation
31
What power output is wind and why is this annoying?
Very low power output and takes up large areas
32
What energy store is hydroelectricity
Gravitational potential energy
33
Is hydroelectricity renewable nonrenewable?
Renewable
34
What is hydroelectricity used for?
Electricity generation
35
What is the power output for hydro electricity? How does it cause environmental impact?
Medium power output and local habitats affected by large areas that are needed to be flooded to build dams
36
What is the geothermal energy store?
Internal
37
What is geothermal energy used for?
Electricity generation and heating
38
What is the power output for geothermal energy and how much environmental impact does it cause
Medium power output and very low environment impact
39
What energy store is tide energy in?
Kinetic
40
What is Tide energy used for?
Electricity generation
41
What is the power output for tides and how does it cause environmental impact?
The power output is potentially very high, but it’s hard to harness and tidal barrages can block sewage which needs to go out to sea
42
What energy store does the Sun go into?
Nuclear
43
What is sun energy used for?
Electricity generation and heating
44
What is the power output dependent on for the Sun energy and what environmental impact does it cause?
The weather and very little impact
45
What energy store does water wave energy fit into?
Kinetic
46
What is waterway energy energy used for?
Electricity generation
47
What is the power output for water wave energy and what is the environmental impact cause?
Low output power and very low environmental impact caused
48
What is the power output for water wave energy and what is the environmental impact cause?
Low output power and very low environmental impact caused

Physics (16 decks)

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