7. Efficiency

Available for over a year

James and Ellie discuss how to calculate the efficiency of an energy transfer and share the key equations you need to make that calculation. Suitable for: AQA, Edexcel, OCR. For more information on efficiency, check out the BBC Bitesize website: https://www.bbc.co.uk/bitesize/guides/zp8jtv4/revision/3 Key learning objectives discussed in this episode: - The energy efficiency for any energy transfer can be calculated using the equation: efficiency = useful output energy transfer ÷ total input energy transfer - Efficiency may also be calculated using the equation: efficiency = useful power output ÷ total power input - (HT only) Students should be able to describe ways to increase the efficiency of an intended energy transfer.