Physics P1.4 0.0 / 5 ? PhysicsElectricityGCSEAQA Created by: emily13566Created on: 11-10-16 18:37 Why are natural sources of energy known as 'renewable energy'? Natural sources can never be used up. 1 of 8 What does a wind turbine consist of? An electricity generator at the top of a narrow tower. 2 of 8 Where does geothermal energy come from? Energy released by radioactive substances. 3 of 8 What does 1) Carbon dioxide and 2) Sulphur dioxide cause? 1. Global warming 2. Acid rain 4 of 8 About how long could it take to use up the Earth's oil and natural gas reserves? 50 years 5 of 8 Give 2 disadvantages of nuclear power... 1. It uses fuel rods (contain radioactive waves) 2. could release radioactive material over a wide area. 6 of 8 What is the national grid? It's a network of cables that distributes electricity to our homes. 7 of 8 Which 3 types of power stations are used to meet base-load demand? Nuclear, Coal- and Oil- fired power stations. 8 of 8
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