Energy Sources

Question 1

What are the non renewable energy resources

Answer 1

Coal
Oil
Natural gas
Nuclear fuels

Question 2

What are the two nuclear fuels

Answer 2

Uranium

Plotonium

Question 3

Will renewable energy resources run out

Answer 3

No

Question 4

What are the renewable energy resources

Answer 4

Wind 
Waves 
Tides
Hydroelectric 
Solar 
Geothermal 
Food 
Biofuels

Question 5

What can energy sources do when they are burned

Answer 5

Drive turbines in power stations

Question 6

What are the four basic features of a power station

Answer 6

Fossil fuels is burned to convert its stored chemical energy into heat energy.
The heat energy is used to heat water to produce steam
The steam turns a turbine converting heat energy into kinetic energy
The turbine is connected to a generator which transfers kinetic energy into electrical energy

Question 7

Nuclear reactors are just like…

Answer 7

Fancy boilers

Question 8

Will non renewable energy resources run out?

Answer 8

Yes

Question 9

What does wind power involve

Answer 9

Lots of windmills

Question 10

Does each wind turbine have its own generator

Answer 10

Yes

Question 11

What does electricity generated directly from the wind do

Answer 11

Turn the blades which turn the generator

Question 12

Is there pollution from wind turbines

Answer 12

No

Question 13

What are the cons of wind turbines

Answer 13

They spoil the view
Very noisy
No power when wind stops
Initial costs are quite high

Question 14

What are the pros of wind power

Answer 14

Renewable source
No fuel costs
Minimal running costs
No permanent damage

Question 15

How do solar cells generate electricity

Answer 15

Directly from the sun

Question 16

What are the pros of solar panels

Answer 16

No pollution
Very reliable energy resource
Fee of running them is nil

Question 17

What are the cons of solar panels

Answer 17

Only work during daytime
Not practical or too expensive to connect to the national grid
Can only be used on small homes

Question 18

What does hydroelectric power usually require

Answer 18

The flooding of a valley by building a big dam

Question 19

What are the cons of hydroelectric power

Answer 19

Loss of habitat
Unsightly
Can dry up
Problem with reliability as can dry up

Question 20

What are the pros of hydroelectric power

Answer 20

No pollution
No fuel
Minimal running costs

Question 21

What does pumped storage do

Answer 21

Give extra supply just when needed

Question 22

Do power stations leave boilers on all night

Answer 22

Yes

Question 23

How does pumped storage work

Answer 23

Night time electricity is used to pump water up to a high reservoir

Question 24

What is good about pumped storage

Answer 24

It can be released quickly during periods of high demand

Question 25

Is pumped storage a way of generating power

Answer 25

No it is a way of storing it

Question 26

How do wave powered turbines work

Answer 26

As waves come into the shore they provide an up and down motion which can be used to drive a generator

Question 27

What are the cons of wave powered turbines

Answer 27

``` Spoils the view Hazards for boats Initial costs are high Can't be used to provide energy on a large scale Fairly unreliable ```

Question 28

What are the pros of wave power

Answer 28

No pollution No fuel costs Minimal running costs Good on an island

Question 29

What are tidal barrages

Answer 29

Big dams built across river estuaries with turbines in them

Question 30

What happens in tidal barrages when the tide comes in

Answer 30

It fills up the estuary to a height of several meters and this drives the turbines at controlled speed

Question 31

What is the source of energy for tidal barrages

Answer 31

Gravity Sun Moon

Question 32

What are the pros of tidal barrages

Answer 32

``` No pollution Pretty reliable Excellent at storing energy No fuel Minimal costs running ```

Question 33

What are the cons of tidal barrages

Answer 33

Prevent access for boats Spoil view Alter habitat Initial costs are high

Question 34

What is geothermal energy

Answer 34

Heat from underground

Question 35

Where is geothermal energy only possible

Answer 35

In volcanic areas where hot rocks are quite near the surface

Question 36

How does geothermal energy work

Answer 36

Steam and hot water rise to the surface are used to drive the generator

Question 37

What are the pros of geothermal energy

Answer 37

Free energy No environmental problems Can heat buildings directly

Question 38

What are the cons of geothermal energy

Answer 38

There aren't many suitable. Locations | Cost is often high

Question 39

What are biofuels made from

Answer 39

Plants | Waste

Question 40

Are biofuels a renewable energy resource

Answer 40

Yes

Question 41

What are biofuels quite similar to

Answer 41

Fossil fuels

Question 42

What are the 3 fossil fuels

Answer 42

Coal Oil Gas

Question 43

What is the problem with the 3 fossil fuels

Answer 43

CO2 is released

Question 44

What does burning coal and oil release

Answer 44

Sulphur dioxide

Question 45

What are the cons of biofuels

Answer 45

Large areas of the Forrest are cleared | CO2 and methane emissions

Question 46

What is carbon captures aim

Answer 46

To reduce the amount of CO2 building up in the atmosphere

Question 47

How does carbon capture work

Answer 47

Collecting the CO2 from the power stations before it can be released

Question 48

How is electricity distributed

Answer 48

Via the national grid

Question 49

Where does the national grid take energy from

Answer 49

Power stations to homes and industry

Question 50

What do you need to transmit Huge amounts of power

Answer 50

High voltage or high current

Question 51

Is it cheaper to boost the voltage current really high and keep the current really low

Answer 51

Yes

Question 52

What does it require to transmit power

Answer 52

Transformers | Big pylons with huge insulators

Question 53

What are the transformers job

Answer 53

To step up the voltage at one end for efficient transmission and bring it back to safe levels

Question 54

What are the ways to move around electrical energy

Answer 54

By cables