Following closely along with the AQA GCSE physics book, this lesson PowerPoint and worksheets cover chapter 15.8: Transformers in Action.
The lesson objectives are:
- How the ratio of the primary to the secondary potential difference depends on the number of turns in each coil
- How the number of turns on the secondary coil relates to the number of turns on the primary coil for a step-down transformer and for a step up transformer
- What you can say about a transformer that is 100% efficient
- Why less power is wasted using high potential difference to transfer power through the grid system
As the content is for triple science students, the lesson has been aimed at high ability. The answers at the end of the PowerPoint refer to the summary questions in the AQA GCSE physics book, page 229. The Worksheets are also aimed at high abilities, and have answers included.
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