
AQA A-level Physics Electronics lesson on communication systems and transmission media. 21 editable slides, 24-mark worksheet, mark scheme and PDFs.
What’s in the PowerPoint
• A waves recap starter, with answers in the speaker notes
• A communication system block diagram and the purpose of each stage
• Twisted pair, coaxial cable and optical fibre, with original diagrams
• A comparison table of copper, fibre and radio
• Ground, sky and space waves, with a wavelength worked example
• Satellite up-links and down-links, and a delay calculation
• A practical: modelling a fibre link
• A common mistakes slide based on AQA examiner reports
• Six check questions with answers, and an exit ticket
• Teacher notes on every slide: spec references, examiner report tips, prior knowledge pages and practical ideas
What’s in the worksheet (24 marks)
• Recall of system stages and optical fibres
• Satellite delay and wavelength calculations
• A 6-mark comparison of copper and fibre
• Exam-style questions on radio propagation and satellite frequencies
• A full mark scheme with mark points, on separate pages
• PDF copies of the slides, the student worksheet (no answers) and the mark scheme, ready to print
Good for: first teaching, revision, homework, cover lessons or independent study. The PowerPoint and Word files are fully editable, and the PDFs are ready to print or share with students.
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