Introduction

Question 1

Define energy and power

Answer 1

Energy is the capacity to do work

Power is the rate at which energy is transformed

Question 2

Define primary energy

Answer 2

Energy embodied in resources as they exist in nature, without any human transformation.

Question 3

Give examples of primary energy

Answer 3

Fossil fuels, biomass, KE of water from reservoir, solar radiation, energy released through nuclear reactions, gravitational energy exerted from the moon.

Question 4

What is secondary energy?

Answer 4

Energy carriers/energy vectors that have been subject to human transformation.

Question 5

Outline primary energy demand in the UK.

Answer 5

Final Consumption: 71%
Losses: 19%
Energy Industries: 6%
Non-Energy: 4%

Question 6

Rank the final consumption uses in the UK.

Answer 6

Transport, Domestic, Industry, Commercial, Non-Energy.

Question 7

Why is energy demand likely to increase?

Answer 7

1) Large increase in middles classes in rapidly developing economies.
2) Increase in the urbanisation of the global population

Question 8

What is a fuel?

Answer 8

Any material that can be made to react with other substances so that it releases energy in the form of heat, or to be used for work.

Question 9

Give primary and secondary examples for solid, liquid and gaseous fuels.

Answer 9

Solid Fuels.
1=Wood, coal, peat, dung.
2=Coke, charcoal.

Liquid Fuels:
1=Crude Oil
2=Diesel, gasoline, ethanol,

Gaseous Fuels:
1=Natural Gas
2=Hydrogen, Propane, Methane