CHAPTER 39 – ENERGY SOURCES AND FUTURE NEEDS


Summary questions 1. Copy and complete the sentences.


____________ is burned to release heat. Water becomes ____________, which generates ____________ energy and causes the blades of a turbine to turn. The turbine blades rotate coiled wire near ____________, which generates ____________ energy.


2. Explain the difference between non-renewable and renewable energy sources. 3. Name two non-renewable energy sources. 4. Name two renewable energy sources. 5. What is a sustainable resource? 6. Name five sources of energy used to generate electricity in Ireland today.


7. Coal is still a major source of our global energy production. a. What are the advantages of using coal to generate electricity? b. Describe two environmental issues caused by using coal to generate electricity.


8. What environmental problems may be caused by constructing a hydroelectric power station?


9. Identify the energy being described in each of the following sentences: a. This energy comes from sunlight. b. This energy production method burns organic matter. c. This energy is stored in the form of heat beneath the surface of the Earth.


d. This energy comes from the decayed remains of animals and plants that died millions of years ago.


e. This energy is released when the nuclei of atoms are split by neutrons. 10. Give one advantage and one disadvantage of nuclear energy.


Past paper questions


1. Final Examination 2019, Question 13 Sustainability issues arise from the generation and consumption of electricity. Electrical energy can be produced using renewable and non-renewable sources.


Identify two renewable sources of energy from the list below by placing a tick () in each of the correct boxes. Oil


Solar Natural gas Wind


Elements of Science 385


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