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Appliances P1

QuestionAnswer
How does a clockwork radio work? Elastic potential energy stored in the spring when wound up and released and converted in to electrical energy
Why would this be useful? In places where there is no mains electricity supply
What are two disadvantages of batteries? Production uses harmful chemicals and a lot of energy, they are also hard to dispose of safely
How can a less developed country be affected by lack of access to electricity? • Can't power fridges to store food and vaccines in- illness spread quicker • Can't use technology such as x rays etc. inability to diagnose people with things can lower life expectancy • No internet or phones- poor communication
Created by: GuyBrazier