An electric kettle has an input power of 2000 W. The useful power output, heating the water, is 1800 W.
Calculate the efficiency of the kettle.
[2 marks]Edexcel GCSE Combined Science · Foundation · Physics Paper 1
Keep the marks you know.
This is our AQA Combined Science Trilogy (8464) course. It teaches the content Edexcel 1SC0 shares with it; our questions follow AQA's layout.
One Physics Paper 1 question. See each mark, then try a fresh one.
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Edexcel GCSE Combined Science Foundation, Physics Paper 1
- 1SC0/1PF
- 1 hour 10 minutes
- 60 marks
- Key concepts, motion and forces, conservation of energy, waves, light, radioactivity
6 papers · 360 marks. Each paper tests its own topics. Topic 1, the key concepts, can come up on both papers in a science. Questions here are original practice, not past papers.