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Appliances P1
Question | Answer |
---|---|
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 |