How Our Energy Is Produced
Overview
Flick a switch and the light comes on, but where did that energy begin? It might be coal burned three hundred kilometres away, sunlight caught on a rooftop, water tumbling through a dam, or heat rising from deep in the Earth. Every energy source falls into one of two camps: those that run out and those that renew, and one source, fuelwood, can be either.
In this lesson you will learn to classify every major energy source as renewable or non-renewable, understand how each one is generated, and see why fuelwood sits awkwardly between the two. This classification underpins everything else in the energy theme.
Objectives
- Types of energy: • renewable: biomass, geothermal, hydroelectric power (HEP), solar, tidal, wave, wind • non-renewable: fossil fuels (coal, gas, oil), nuclear • fuelwood, which can be either renewable or non-renewable.
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Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on How Our Energy Is Produced. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Which of the following is a non-renewable source of energy? A. wind B. solar C. coal D. tidal Answer: C
- The three fossil fuels are: A. coal, oil and natural gas B. coal, uranium and wind C. oil, solar and gas D. wood, coal and tidal Answer: A
- Nuclear power is best described as: A. renewable and high-carbon B. non-renewable and low-carbon C. renewable and low-carbon D. non-renewable and high-carbon Answer: B
- Geothermal energy uses: A. the rise and fall of tides B. natural heat from inside the Earth C. burning of crops D. moving air Answer: B
- Fuelwood can be classed as renewable when: A. trees are cut faster than they regrow B. trees are cut no faster than they regrow C. the forest is completely cleared D. it is burned in power stations Answer: B
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