Which two power stations have the quickest start-up times?

natural gas and hydroelectric (pumped storage)

Disadvantages of wind power are

It's unreliable, It causes visual pollution

Peak load is usually...

early morning and teatime/evening

Hyrdoelectric power stations (pumped storage) have...

water pumped up to a high place in the hills ready to let go

Which of these are all renewable resources?

geothermal, wind, wave, biofuel, hydroelectric, tidal

Insulating homes & turning off electrical goods when not in use is good for Earth as we will..

Burn less fossil fuels: reduce CO2 & slow global warming

Wood is an example of a biofuel. What are two advantages of using wood as a fuel?

It's renewable and it's carbon neutral.

Hydroelectric power stations are used to supply electricity...

only to supply very high peak load: very fast start-up time

Advantages of nuclear power

doesn't emit CO2 so doesn't contribute to global warming

A disadvantage of tidal and hydroelectric power generation are

they both can cause damage to river habitats

The minimum electricity needed to keep the UK running 24-7

Name two environmental advantages of using solar power

No CO2 emitted so no global warming & no SO2 = no acid rain

Why does the demand in electricity in the UK change over the course of a day (24h)?

We don't use all electrical items like the oven, tv all day

2 disadvantages of nuclear power (precise answers needed)

It's non-renewable and produces long term radioactive waste

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GCSE Energy resources

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Energy resources

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Questions 15

Answers

1
Which two power stations have the quickest start-up times?
hydroelectric (pumped storage) and nuclear
natural gas and hydroelectric (pumped storage)
coal and nuclear
natural gas and coal
2
Disadvantages of wind power are
It's unreliable
It's renewable
It emits carbon dioxide that is a greenhouse gas
It causes visual pollution
3
Coal, oil, gas and nuclear are all ...
carbon neutral
non-renewable resources
renewable resources
greenhouse gas emitters
4
Peak load is usually...
very late at night
around 11am and then 2pm
early morning and teatime/evening
when most people are sleeping
5
Hyrdoelectric power stations (pumped storage) have...
water pumped up to a high place in the hills ready to let go
pumpkins stored in a high place in the hills
water pumped up to a low place in a valley ready to let go
water kept behind tidal barrages ready to let go
6
Which of these are all renewable resources?
wind, wave, geothermal, biofuel, tidal, natural gas
hydroelectric, natural gas, wind, wave, geothermal
geothermal, wind, wave, biofuel, hydroelectric, tidal
wind, wave, geothermal, biofuel (biomass), nuclear
7
Insulating homes & turning off electrical goods when not in use is good for Earth as we will..
Burn less fossil fuels: reduce CO2 & slow global warming
Burn less fossil fuels and save money
Burn more fossil fuels: reduce CO2 & slow global warming
Burn less fossil fuels and save the planet
8
Wood is an example of a biofuel. What are two advantages of using wood as a fuel?
It's renewable and it's carbon neutral.
It's renewable and cheaper than coal
It's non-renewable and is carbon neutral
It's renewable and it doesn't produce CO2
9
Hydroelectric power stations are used to supply electricity...
constantly to supply the base load: slow start-up time
constantly to supply the base load: fast start-up time
only to supply very high peak load: very fast start-up time
at peak times: quite fast start-up time
10
Advantages of nuclear power
gives off carbon dioxide that contributes to global warming
it's renewable
it's non-renewable
doesn't emit CO2 so doesn't contribute to global warming
11
A disadvantage of tidal and hydroelectric power generation are
they are both unreliable
they both cause pollution
they both can cause damage to river habitats
they both emit greenhouse gases
12
What is base load?
The extra electricity needed at different times in the day
The spare electricity used to provide pumped storage
The minimum electricity needed to keep the UK running 24-7
The weight of an average electric guitar
13
Name two environmental advantages of using solar power
No CO2 emitted so no global warming & has zero fuel costs
No CO2 emitted so no global warming & no SO2 = no acid rain
It's renewable and we can store it in batteries
It's cheap to run and renewable
14
Why does the demand in electricity in the UK change over the course of a day (24h)?
Power stations can't supply the national grid all day
We don't use all electrical items like the oven, tv all day
We use the same amount of electricity 24-7
Nuclear and coal power stations have long start-up times
15
2 disadvantages of nuclear power (precise answers needed)
Once you've used it, it's gone and it causes pollution
It's non-renewable and produces long term radioactive waste
It has high start-up and decommissioning costs and is scary
It's expensive and dangerous

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