Energy Resources - Energy

Question 1

Name the main renewable energy sources

Answer 1

• Wind
• Solar
• Geothermal
• Water waves
• Biofuels
• Hydroelectricity
• Tidal

Question 2

Name some examples of fossil fuels

Answer 2

• Coal
• Crude Oil
• Natural Gas

Question 3

Name examples of non renewable sources

Answer 3

• Fossil fuels
• Nuclear energy

Question 4

What is the difference between renewable energy resources and non renewable energy resources?

Answer 4

Renewable energy can not be depleted (run out, they can be replenished). Non renewable energy can run out and is not reliable.

Question 5

How can the heat of fossil fuels be used for?

Answer 5

• Burn to provide heat for direct use e.g. cooking
• Generate electricity
• To power engines

Question 6

Pros of fossil fuels

Answer 6

• Cheap
• Can be used in any conditions (don’t need wind or sunshine)
• Reliable

Question 7

Cons of fossil fuels

Answer 7

• Limited
• Produce carbon dioxide when burned - greenhouse gas and contributes to global warming
• Can produce toxic gases when burned e.g. sulfur dioxide (causes acid rain) and carbon monoxide

Question 8

Pros of nuclear energy

Answer 8

• Do not produce any pollutants
• Can be used in any conditions
• Unlikely to run out in a long time

Question 9

Cons of nuclear energy

Answer 9

• Finite resource
• Produce radioactive waste/ nuclear waste which is harmful and lasts a long time
• Expensive
• Dangerous

Question 10

Pros of wind

Answer 10

• Low running costs
• Turns kinetic energy to electrical energy
• Doesn’t release CO2
• Renewable

Question 11

Cons of wind

Answer 11

• High upfront costs
• Noisy
• Destroys natural habitat
• Expensive to build
• Looks ugly
• Dependant on wind
• Takes a lot of space

Question 12

Pros of solar energy

Answer 12

• Renewable
• Reduces climate change
• Makes electricity and heat without releases greenhouse gases

Question 13

Cons of solar energy

Answer 13

• Can’t work at night
• Expensive