the importance of energy supplies in the development of society

Question 1

Historically what was humans principle energy source?

Answer 1

sunlight

Question 2

how was life limited by sunlight?

Answer 2

tasks could only really be done in daylight hours before darkness

Question 3

what biofuel allowed for fire?

Answer 3

wood

Question 4

what is the problem with wood as a energy resources?

Answer 4

small scale energy resources cant be used to power vehicles or factories

Question 5

what did the discovery of coal allow?

Answer 5

allowed steel to be created and it powere3d the industrial revolution

Question 6

what does having access to energy allow?

Answer 6

energy=industry=money=development

Question 7

what is the trend between human development and energy consumption?

Answer 7

the more “developed” a country is the more energy it uses generally

Question 8

what is affluence

Answer 8

wealth

Question 9

how does affluence affect energy consumption?

Answer 9

wealthier nations can afford yo do more activities and have more things that use energy

Question 10

what does energy insecure mean?

Answer 10

a country don’t have their own sources of energy instead they have to import energy from other countries

Question 11

what is the problem with having energy imported?

Answer 11

Political tensions such as between Ukraine and Russia can lead to boycotts of much needed sources of oil

Question 12

what also makes a country energy insecure?

Answer 12

A country might have energy resources but not the technology to extract it

Question 13

what is an example of a place where they have oil but cannot extract it?

Answer 13

Nigeria

Question 14

what is primary energy?

Answer 14

the raw fuel source

Question 15

what are examples of primary energy?

Answer 15

coal, oil, gas

Question 16

what is secondary energy?

Answer 16

an energy source derived from other primary energy sources

Question 17

what is an example of a secondary energy source?

Answer 17

electricity

Question 18

what is the problem with converting primary energy to secondary?

Answer 18

the process isn’t efficient and some energy is lost

Question 19

why does primary to secondary conversion take place if its inefficient?

Answer 19

as electricity is a useful energy source

Question 20

why does primary to secondary conversion take place if its inefficient?

Answer 20

as electricity is a useful energy source

Question 21

why is electricity more useful then coal in some cases?

Answer 21

Phones don’t run off coal

Question 22

where is energy used in Agriculture?

Answer 22

1. manufacture of fertilisers and other chemicals
2. transporting food
3. refrigerating food
4. fuel for machinery
5. fuel for water pumps
6. fuel to light greenhouses
7. fuel for milking machines
8. larger more powerful fishing vessels
9. processing food products
10. powering ventilation and heating animal housing

Question 23

why is energy beneficial for farming?

Answer 23

makes farming easier and harvesting quicker this means that we are more productive

Question 24

what does more productive farming mean?

Answer 24

more calories or crops can be produced in a smaller space

Question 25

what are the negatives of intensified farming?

Answer 25

pollution and poor animal welfare and increased carbon emissions

Question 26

what are the positives of intensive farming?

Answer 26

can provide more food to more people

Question 27

how is energy used for fishing?

Answer 27

1. power large trawler ships
2. aeration of tanks in aquaculture
3. chilling caught fish
4. powering of filtration systems
5. transporting fish stocks
6. gutting and canning fish

Question 28

how has energy been beneficial for the fishing industry?

Answer 28

able to fish more from the seas
fish farms are possible as stable conditions can be provided
catch size has increased
processing fish much easier

Question 29

why is energy important for industry?

Answer 29

industrial revolution was only able to happen due tot he ability to create kiln fires to smelt iron

Question 30

how is energy used in industry?

Answer 30

1. operate machinery (conveyor belts, excavators)
2. heat to melt metal and form parts
3. energy to induce chemical reactions
4. heat for baking (bricks to bread)
5. heat to distil products- crude oil to alcohol

Question 31

where is energy needed for water?

Answer 31

1. needed to help in treating water for use

2. energy used to pump water from reservoirs

Question 32

how is energy used in transport?

Answer 32

1. transport of goods- container ships and lorries need diesel
2. energy needed to transport energy oil pipes may need heating
3. transport for people- cars, planes, trains and busses

Question 33

why might energy be needed to transport energy?

Answer 33

oil pipelines need to be kept warm so the oil can remain liquid and flow

Question 34

how is energy used in the home?

Answer 34

1. space heating
2. cooking
3. lightning
4. powering appliances (washing machine)

Question 35

how would domestic life be affected without energy?

Answer 35

would take up more time and effort

Question 36

what is the global average for energy usage in homes

Answer 36

3,370 kWh