NEW AQA GCSE (2016) Physics - Electrical Power & Potential Difference

This lesson is designed for the NEW AQA Trilogy Physics GCSE, particularly the 'Electricity’ SoW.

For more lessons designed to meet specification points for the NEW AQA Trilogy specifications for Biology, Chemistry and Physics please see my shop: https://www.tes.com/teaching-resources/shop/SWiftScience

The lesson begins with an introduction to power and what the power rating of an electrical appliance tells us about that appliance. Students are then asked to recap on their knowledge of power by trying to link together power, energy transferred and time in an equation (also in the ‘Energy’ topic).

Once pupils have had a go at writing the correct equation, the answer is revealed in the PowerPoint presentation and students can then use this formula triangle to answer a set of questions. Once this task is complete students can then self-assess their working using the mark scheme provided.

Students are now introduced to the calculation which works out the power supplied to an electrical appliance when given the current and potential difference. Students can make a note of this calculation in their books, complete the worked examples in their books and assess their answers.

Next, pupils will be shown how you are able to decide which sort of fuse (3A, 5A, 13A) will be suitable for an appliance. Students are shown a worked example first, then they will be required to complete a ‘Quick Check’ task whereby students will answer questions based upon what they have learned so far this lesson. The mark scheme for this task is included in the PowerPoint so students can self-assess their work once it is complete.

The last part of the lesson focuses on the relationship between current and resistance heating, pupils are shown another calculation which they are able to use to work out the power supplied to a resistor. Students will then be given a set of problems to work through, again assessing their knowledge of all they have learned this lesson. Students can then self-assess or peer-assess their work using the answers provided.

The plenary task requires pupils to spend a minute talking to the person next to them about what they have learned.

All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)