Transformers and National Grid

Complete no-prep lesson with 50+ slides tasks, answers and unique exam questions, on Transformers and the National Grid for the Electromagnetism Topic of GCSE (9-1) Science / Physics.

Please note, if you are looking for the National Grid lesson for the Electricity Topic it is here: https://www.tes.com/teaching-resource/resource-12668952

As a Secondary Science teacher and Deputy Headteacher for many years I make high quality no-prep lessons so busy teachers can teach outstanding lessons without spending hours planning. This high quality lesson includes explanations, different types of in-lesson assessment (all with answers) and unique exam questions.

My lessons are ideal for non-Physicists because I myself retrained as a Physics teacher despite having a background in Biology. Having to learn the subject myself means I know how to take learners on a journey that builds up their understanding step by step, while still going into a lot of depth. The preview video shows a representative sample of slides from the resource so that you get a good idea of what it includes before you buy.

What’s Included:

• Two starters so you can extend this over two lessons if needs be.
• Explanation slides in “chunked” sections with animated diagrams.
• Worked examples of calculations.
• • Editable diagrams and animations which help aid understanding.
• Multiple questions in different question styles and difficulties - no need for worksheets. Most “chunked” explanation sections include a set of “learning check quick questions” followed by a set of in-depth questions on the learning from that “chunk” of the lesson.
• Exam-style questions on the whole lesson at the end of the lesson- these are uniquebased on real exam questions but not just copied from exam boards.
• Answers for all questions
• All easily editable to adapt to your teaching or to use in existing lessons.
• Slightly humourous, at points, if you like that sort of thing.

Learning objectives:

• Describe what a transformer does, and its structure.
• Explain how transformers work, including how the ratio of potential differences relates to the ratio of turns on each coil.
• Explain how an alternating current in the primary coil induces an alternating potential difference in the secondary coil.
• Apply the following equations:
  Vp / Vs = Np / Ns and V s × Is = V p × I p
• Use the equations to describe the advantages of power transmission at high potential differences.

The lesson was written for AQA GCSE Physics but is very likely to be applicable to other exam specifications.
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