Chapter 3 🏵

Question 1

Problems with hydroelectricity

Answer 1

The reservoir could run dry

Question 2

Which types of energy are unreliable?

Answer 2

Renewable resources as they depend on conditions

Question 3

Problems with wind and wave electricity

Answer 3

Wind and waves could be calm

Question 4

Problems with tidal energy

Answer 4

Height of tide varies

Question 5

Problems with solar energy

Answer 5

No solar energy at night

Question 6

What is used to provide a constant amount of electricity

Answer 6

Nuclear and coal fired power stations

Question 7

What is used to meet extra electricity demand in winter?

Answer 7

Gas fired power stations

Question 8

When are renewable resources used?

Answer 8

When demand is high and when the conditions are suitable

Question 9

What is produced when fossil fuels are burnt?

Answer 9

Greenhouse gases like carbon dioxide

Question 10

What causes acid rain?

Answer 10

Sulfur dioxide

Question 11

Advantages to nuclear power

Answer 11

No greenhouse gases produced

More energy produced

Question 12

Disadvantages of nuclear power

Answer 12

Radioactive waste has to be stored for years

Explosions

Question 13

Advantages of renewable energy sources

Answer 13

Never run out
No greenhouse gases
No radioactive products

Question 14

Disadvantages to renewable energy

Answer 14

still not able to meet the world demand
Wind turbines make noise pollution 
Tidal and hydroelectricity affect wildlife 
Solar panels need to cover a large area
Can be unreliable

Question 15

Disadvantages to solar energy

Answer 15

Convert less than 10% of energy absorbed to electricity
Only produce small amounts of energy
Very expensive
Lots of them needed

Question 16

How do solar heating panels work?

Answer 16

Use the sun’s energy to heat up water in panels

Question 17

How does geothermal energy work?

Answer 17

The energy transferred from radioactive substances heats rocks and heats the earths surface
Water is pumped into the earth and gets turned into steam which powers a turbine

Question 18

How does wind power work?

Answer 18

Force of wind turns blades, which powers a generator

Question 19

How does wave power work?

Answer 19

A floating generator bobs up and down on the water. This motion turns the generator so it makes electricity

Question 20

How does hydroelectric power work?

Answer 20

Water collected in a reservoir or in storage flows downhill and drives turbines that power generators at the bottom of the hill

Question 21

How does tidal power work?

Answer 21

Traps water from high tide behind a barrage. This water flows through turbines to reach the sea , generating power

Question 22

What is a biofuel?

Answer 22

A fuel taken from a living or dead organism

Question 23

Advantages to biofuel?

Answer 23

Renewable 
Carbon neutral (organism takes in as much carbon as burning expels)

Question 24

How to get nuclear fuel?

Answer 24

Takes energy from atoms when they split (fusion)

Question 25

What is a biofuel?

Answer 25

A fuel taken from a living or dead organism

Question 26

Advantages to biofuel?

Answer 26

``` Renewable Carbon neutral (organism takes in as much carbon as burning expels) ```

Question 27

How to get nuclear fuel?

Answer 27

Takes energy from atoms (fission and fusion)

Question 28

What are the three non renewable types of energy

Answer 28

Coal Oil Natural gas

Question 29

Alternatives to fuel powered cars

Answer 29

Bio fuels

Question 30

Which power station has the longest start up time

Answer 30

Nuclear

Question 31

What is released when fossil fuels are burnt

Answer 31

Greenhouse gases

Question 32

What does sulcus dioxide do

Answer 32

Acid rain

Question 33

What energy sources provides most electricity at the minute

Answer 33

Gas

Question 34

What is the difference between solar heating panels and solar cell panels

Answer 34

Solar cell panels use sunlight to make electricity whereas the other uses it to heat water

Question 35

Source of geothermal energy

Answer 35

Radioactive substances

Question 36

Main disadvantage of geothermal energy

Answer 36

Few suitable areas and is expensive

Question 37

Advantages of wind power 3

Answer 37

No pollution No fuel cost and minimal running cost No permanent damage to landscape

Question 38

Advantage of geothermal power

Answer 38

Very little damage to environment

Question 39

Advantage of solar cells 2

Answer 39

No pollution | Can be used in remote areas

Question 40

Disadvantage to solar cells

Answer 40

Can’t get more power when needed

Question 41

Advantage to nuclear power

Answer 41

Lots of energy created

Question 42

What is the fuel in a nuclear power station

Answer 42

Uranium or plutonium

Question 43

Advantage of tidal power 2

Answer 43

No pollution | Quite reliable

Question 44

Disadvantage of tidal power 2

Answer 44

Spoils view | Destroys habitats

Question 45

Advantage of wave power

Answer 45

No pollution

Question 46

Disadvantage of wave power 2

Answer 46

Disturbing habitats | Unreliable

Question 47

Advantage of hydro electric

Answer 47

Immediate response

Question 48

Disadvantage of hydro electric

Answer 48

Big impact on environment

Question 49

What is a renewable source of energy?

Answer 49

An energy source that is being replenished by natural processes as quickly as it is being used up