energy resources

Question 1

what will happen to non renewable energy sources one day

Answer 1

they will run out

Question 2

what is a non renewable energy source

Answer 2

is an energy resource that cannot be made at the same rate that it is consumed, so one day will run out

Question 3

what are the non renewable energy resources (2)

Answer 3

fossil fuels
nuclear fuel

Question 4

three main fossil fuels

Answer 4

coal
oil
natural gas

Question 5

a renewable energy source is

Answer 5

an energy resource that is being, or can be made at the same rate ( or faster) that it’s being used, so will never run out

Question 6

there are 7 renewable energy sources, state them

Answer 6

• geothermal
• biofuels
• wind
• tidal
• solar
• hydroelectric
• water waves

Question 7

what is one of the most common way of generating electricity using fossil fuels

Answer 7

in big powerhouse stations

Question 8

what features does a nuclear power station have

Answer 8

nuclear reactor, turbine, generator

Question 9

what gas do coil, oil and gas release into the atmosphere when they’re burned

Answer 9

carbon dioxide

Question 10

are fossil fuels and nuclear fuel readily available at the moment

Answer 10

at the moment, there are enough fossil fuels to meet current demand so power stations can generate a reliable electricity supply as they have fuel in stock

Question 11

what is the problem with extracting nuclear fuel

Answer 11

it is expensive and difficult and becoming more and more so as we use the easily accessible supplies up.

Question 12

what does burning coal and oil also release and what does that cause

Answer 12

sulphur dioxide which causes acid rain.

Question 13

what risk to nuclear power stations impose

Answer 13

there is major risk of catastrophe

Question 14

we use the suns energy directly by using (2)

Answer 14

solar cells
solar panels

Question 15

are solar cells expensive

Answer 15

yes

Question 16

do solar cells damage the environment a lot

Answer 16

no, there is no pollution

Question 17

what are solar cells mostly used on

Answer 17

to charge batteries on calculators or watches which don’t use much electricity

Question 18

where is solar power most often used

Answer 18

in remote places where there is no choice like australian outback and to power electric road signs

Question 19

when is solar power available

Answer 19

only in the day time

Question 20

can you increase the power output of solar power when there is increase in demand

Answer 20

no

Question 21

compared to other energy resources, do solar cells produce a lot or little power per unit space taken up

Answer 21

little

Question 22

will wind and biofuels run out

Answer 22

no

Question 23

what are biofuels

Answer 23

renewable energy source created from plant products or animal dung

( can be liquid or gas)
can be burned to produce electricity or run cars in the same way as fossil fuels

Question 24

pros of biofuel (2)

Answer 24

carbon neutral
available and reliable

Question 25

cons of biofuels (2)

Answer 25

• need a lot of space for crops, so generating energy on a large scale is limited by having enough land
• in some regions, large areas of forests have been removed to make room for biofuels, resulting in lots of species losing their natural habitats

Question 26

is wind power produced on a large or small scale

Answer 26

both

Question 27

is there pollution from wind turbines

Answer 27

no

Question 28

con of wind turbines

Answer 28

they spoil the view

Question 29

geothermal power uses energy in the internal energy of ___ that are ____

Answer 29

rocks that are underground

Question 30

where is geothermal power available

Answer 30

in volcanic areas where hot rocks lie near the surface

Question 31

is geothermal power reliable

Answer 31

very

Question 32

does geothermal have environmental problems

Answer 32

can release som CO2 but much less than fossil fuels

Question 33

what can geothermal energy be used for

Answer 33

large scale to generate electricity or small scale to heat buildings

Question 34

cons of geothermal ( drawbacks)

Answer 34

not many suitable locations for power stations, cost of building the power station is high compared to the amount of power it produces

Question 35

hydroelectric power generates electricity from

Answer 35

from the energy in the kinetic energy stores of falling water

Question 36

is there pollution with wave power

Answer 36

no

Question 37

wave power is only available in

Answer 37

coastal locations

Question 38

does wave power produce electricity on a large scale

Answer 38

no

Question 39

is wave power reliable

Answer 39

not really as it depends on if the wind drops

Question 40

main problems with wave power

Answer 40

• disturbs seabed
• disturbs habitat of marine wildlife
• hazard to boats

Question 41

what is one method that tides produce electricity

Answer 41

tidal barrages

Question 42

what are tidal barrages

Answer 42

big dams built across river estuaries

Question 43

is there pollution with tidal barrages

Answer 43

no

Question 44

is tidal power reliable

Answer 44

pretty reliable as they happen twice a day without fail

Question 45

name the reaction that releases the energy stored in the nuclear energy stores of nuclear fuel

Answer 45

fission