Info point: Electricity Talk to a partner. List all the activities you do on a typical day. Do they require electricity? What would you do if there were no electricity? How would your day change? Discuss your findings in class. Listen to a podcast on electricity and complete the sentences below. 1 Electrons are one of the three basic building blocks of the universe and have a charge. 2 The units of electrical are called “Watts”. 3 Electricity is produced by other sources of energy such as thermal energy from burning coal, oil, or natural gas, or energy from moving air molecules. 4 By using a generator, we are able to convert energy into electrical energy. 5 For electricity to flow there must be a closed . 6 Resistance to the flow of electricity is measured in units called . Look at the picture of a wind turbine and put the correct words into the spaces. Listen to the podcast again to check your answers. 30 a b 18 am248p c drive shaft stator with magnets and coiled copper wire rotor blades (1) (2) (3) (4) Listen again and write definitions and examples. Conductors Insulators Semiconductors Definition: Definition: Definition: Examples: Examples: Examples: Media task. Go online, research possible uses of conductors, insulators and semiconductors. Write a list for each material. Compare your findings and sources of information in class. Look at the bar chart below. What is it about? d 31 32 a thousand TWh IEA. All Rights Reserved Stated Policies Sustainable Development 2018 2020 2030 2040 2018 2030 2020 2040 45 40 35 30 25 20 15 10 5 0 Coal Gas Oil Solar Nuclear Hydro Wind Other renewables 35 Language skills Extras Explore 3 Success Nur zu Prüfzwecken – Eigentum des Verlags öbv
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