Energy Resources And Energy Generation

Question 1

Renewable

Answer 1

It replenishes at a faster rate than it is used, it doesn’t run out.

Question 2

Non-renewable

Answer 2

It is used at a faster rate than it is replenished, hence it will run out.

Question 3

Advantages of coal power

Answer 3

• consistent
• available
• lots of power stations

Question 4

Disadvantages of coal power

Answer 4

• pollution
• high maintenance

Question 5

Transfer of coal power

Answer 5

Chemical energy (stored in the fuel) -Transferred by Heating-> Thermal energy (stored in the water) -Transferred by Heating-> Kinetic energy (stored in the steam) -Transferred Mechanically-Kinetic Energy (in the turbines and generator) -Transferred Electrically-> Houses (in the cables)

Question 6

Advantages of Solar Cells

Answer 6

• good on short-scale
• cheap

Question 7

Disadvantages of Solar Cells

Answer 7

• weather-dependent
• uncontrollable
• inefficient

Question 8

Transfer of Solar Cells

Answer 8

Transferred by Radiation (from the Sun) -> Transferred Electrically (in the cables)

Question 9

Advantages of wind power

Answer 9

• reliable
• renewable
• job creation
• scalability

Question 10

Disadvantages of wind power

Answer 10

• damages environment (migrating birds)
• too much energy
• unattractive (disturbs landscape)

Question 11

Transfer of wind power

Answer 11

Kinetic energy (in the wind) -Transferred Mechanically-> Kinetic Energy (in the turbines and generator) -Transferred Electrically-> Houses (in the cables)

Question 12

Advantages of Hydroelectric Power

Answer 12

• renewable
• can be controlled
• turned up and down
• consistent

Question 13

Disadvantages of Hydroelectric Power

Answer 13

• flooding
• too much energy
• high maintenance
• harm sea-life
• restricted to areas
• very loud
• affected by climate

Question 14

Transfer of Hydroelectric Power

Answer 14

Gravitational Potential Energy (stored in the water) -(Transferred mechanically)-> Kinetic Energy (in the water) -Transferred Mechanically-Kinetic Energy (in the turbines and generator) -> Transferred Electrically-> Houses (in the cables)

Question 15

Advantages of tidal power

Answer 15

• renewable
• high energy production
• reliable

Question 16

Disadvantages of tidal power

Answer 16

• too much energy
• dangerous if broken
• harms wildlife
• high maintenance
• weather events

Question 17

Tranfers of Tidal Power

Answer 17

Gravitational Potential Energy (stored in the water) -Transferred Mechanically-> Kinetic Energy (in the water) -Transferred Mechanically-> Kinetic Energy (in the turbines and generator) -Transferred Electrically-> Houses (in the cables)

Question 18

Advantages of Wave Power

Answer 18

• renewable

Question 19

Disadvantages of Wave Power

Answer 19

• uncontrollable
• high maintenance
• dangerous
• harmful to sea life

Question 20

Transfer of Wave Power

Answer 20

Kinetic energy (in the water) -Transferred Mechanically-> Kinetic Energy (in the turbines and generator) -Transferred Electrically-> Houses (in the cables)

Question 21

Advantages of Geothermal Power

Answer 21

• lots of electricity
• renewable
• reliable
• low maintenance

Question 22

Disadvantages of Geothermal Power

Answer 22

• greenhouse gas or toxic emissions
• high upfront cost

Question 23

Transfer of Geothermal Power

Answer 23

Thermal energy (in the ground) -Transferred by Heating-> Thermal energy (in the water) -Transferred Mechanically-> Kinetic Energy (in the steam) -Transferred Mechanically-> Kinetic Energy (in the turbines and generator) -Transferred Electrically-> Houses (in the cables)

Question 24

Advantages of biomass

Answer 24

• more renewable than fossil fuels
• low maintenance

Question 25

Disadvantages of Biomass

Answer 25

- greenhouse gases - large growth area - less efficient

Question 26

Transfers of Biomass

Answer 26

Chemical Energy (stored in biomass) -Transferred by Heating-> Thermal Energy (in the water) -Transferred Mechanically-> Kinetic Energy (in the steam) -Transferred Mechanically-> Kinetic Energy (in the turbines and generator) -Transferred Electrically-> Houses (in the cables)

Question 27

Nuclear fission

Answer 27

Splitting atoms to release energy

Question 28

Advantages of Nuclear Power

Answer 28

- produces a lot of energy - only need a little uranium - lasts long - low risk

Question 29

Disadvantages of Nuclear Power

Answer 29

- radioactive - high maintenance - non-renewable - large (needs lots of space) - hard to find building space - high consequence

Question 30

Transfers of Nuclear Power

Answer 30

Nuclear energy (stored in the fuel) -Transferred by Heating-> Thermal Energy (in the water) -Transferred Mechanically-> Kinetic Energy (in the steam) -Transferred Mechanically-> Kinetic Energy (in the turbines and generator) -Transferred Electrically-> Houses (in the cables)