
AQA A-level Physics Turning Points lesson on the photoelectric effect and photons. 16 editable slides, 29-mark worksheet, mark scheme and PDFs.
What’s in the PowerPoint
• A photon recap starter, with answers in the speaker notes
• The three photoelectric observations and why wave theory fails
• Black-body radiation and the ultraviolet catastrophe, with a graph
• Planck, Einstein and hf = φ + Ek(max)
• Stopping potential, the Ek(max) against f graph, and a worked example
• A common mistakes slide
• Six check questions with answers, and an exit ticket
• Teacher notes on every slide: textbook pages, spec references, misconceptions and demo ideas
What’s in the worksheet (29 marks)
• Recall of observations, work function and black bodies
• Photon energy, threshold and stopping potential calculations
• Interpreting the Ek(max) against f graph
• Exam-style questions on the photon model and the UV catastrophe
• 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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