Ks4 renewable energy
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KS4 Renewable energy. Teacher’s Notes. A slide contains teacher’s notes wherever this icon is displayed - To access these notes go to ‘Notes Page View’ (PowerPoint 97) or ‘Normal View’ (PowerPoint 2000). . Notes Page View. Normal View. Flash Files.

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Slide2 l.jpg

Teacher’s Notes

A slide contains teacher’s notes wherever this icon is displayed -

To access these notes go to ‘Notes Page View’ (PowerPoint 97) or ‘Normal View’ (PowerPoint 2000).

Notes Page View

Normal View

Flash Files

A flash file has been embedded into the PowerPoint slide wherever this icon is displayed –

These files are not editable.


Energy resources l.jpg
Energy resources

Wind

Sun

Solar

Sun

Wave

Sun

Tidal

Moon

Hydroelectric

Sun

Biomass

Sun

Geothermal

Stored heat energy in the Earth


Mind map l.jpg
Mind map

tidal

nuclear

Stored heat energy in the Earth

wave

wind

solar

hydroelectric

biomass

geothermal

fossil fuels


Solar energy l.jpg
Solar energy

Solar cells are expensive/cheap to make. Even though they only provide energy at low power / high power, sometimes they are the best solution to providing energy. Satellites in space use solar cells as a source of energy.

Solar power stations can use concave/convex mirrors to focus energy on a boiler. This produces the steam to turn a turbine, which in turn drives a generator and then produces electricity.

Solar cells contain toxic/harmless chemicals that if ‘dumped’ can poison habitats.


Solar power l.jpg
Solar power

Renewable

Unreliable – why?

No acid rain

Few areas suitable

No global warming

Low power energy source

Toxic chemicals in solar cells can damage habitats

Cheap to run once built

Expensive to build


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Wind

Unlike fossil fuels and solar energy, there is no need for a b____ in a wind turbine. The wind turns the turbine d_____ - no s____ is required.

Wind energy is very l so you need many wind turbines to meet the same energy requirements as a fuel-burning power station.

You need to find an a large a___ of land, away from settlements because of the n___, and it obviously has to be w___!

oiler

irectly

team

ow power

rea

oise

indy


Wind power l.jpg
Wind power

Renewable

Unreliable

No acid rain

Few areas suitable

Cheap to run once built

Low power energy source

Noisy and unsightly

No global warming

Expensive to build

Large area required

Kills migratory birds


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Wave

ind

The S__ produces the w___ and the wind causes w____. Waves can be used to turn t_______ directly and generate electricity.

un

aves

urbines

enewable

Wave energy is r________. No air pollution is produced such as sulphur dioxide or nitrogen oxides that cause acid rain. It is also cheap to run once built.

The problems are that it is expensive to set up. There are few areas suitable, it can kill flora and fauna and the energy you get is very l .

ow power


Tidal l.jpg
Tidal

ides

The M___ causes the t____. This causes the level of the sea to rise and fall. This movement of the sea can be used to turn turbines directly and generate e________.

oon

lectricity

enewable

Tidal energy is r________ and non-polluting. It is cheap to run once built.

The problems are that it is to set up. There are few areas suitable, it can kill flora and fauna and the energy you get is very l .

expensive

ow power


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Biomass

This is where you burn organic/inorganic matter, be it plant or animal. The reason it is classed as renewable/non-renewable is that you can reproduce this matter relatively quickly. For example, you can just grow some more plants.

However you do require a large area/small area of land.


Geothermal l.jpg
Geothermal

Advantages?

Disadvantages?

Warm water comes back up and used to turn turbines

Renewable

Cold water pumped down

No acid rain or greenhouse effect

Cheap once built

Few areas suitable

Expensive to build

Water heated by hot rocks



Hydroelectricity14 l.jpg
Hydroelectricity

Renewable

Destroys habitats

No acid rain

Few areas suitable

Unsightly

No global warming

Cheap to run once built

Expensive to build

Large area required

Some systems pump water back up at night with the surplus electricity – energy efficient.


What is the energy source for tidal energy l.jpg

The Sun

A supernova

The Moon

Radioactive rocks

What is the energy source for tidal energy?


What is the energy change for falling water l.jpg

Kinetic  gravitational

Gravitational  kinetic

Kinetic  electrical

Heat  Kinetic

What is the energy change for falling water?


Which of the following is not renewable l.jpg

Wind

Biomass

Nuclear

Hydroelectric

Which of the following is not renewable?


What is an environmental problem associated with hydroelectricity l.jpg

Acid rain

Greenhouse effect

Destroys habitats

Radioactive waste

What is an environmental problem associated with hydroelectricity?


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