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4.1 Energy
Quick questions on Power and efficiency - AQA GCSE Physics
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Define power and state its unit. [2 marks]
What is q2?Show answer
A lamp transfers of electrical energy, of which becomes light. Calculate its efficiency. [2 marks]
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