IGCSE Physics: The Electromagnetic Spectrum | Edexcel Modular | Unit 5 | L5

IGCSE Physics: The Electromagnetic Spectrum | Edexcel Modular | Unit 5 | L5

This lesson covers spec points 5.10, 5.11, 5.12 and 5.13 — common properties of all EM waves, the full spectrum order, and the uses and dangers of each band.

PowerPoint includes:
• Retrieval starter — list the visible spectrum in order
• Direct Instruction (I Do) — common properties of all EM waves; full spectrum order with frequency/wavelength trends; detailed uses and dangers per band
• Guided Practice (We Do) — three problems: identify EM wave from use case; hazard matching MCQ; fill-in-the-blanks on properties
• Independent Practice (You Do) — compare UV and infrared dangers; two-property question; X-ray vs UV imaging question; ionising risk comparison
• Order check activity (4 waves, longest to shortest wavelength)
• Review and Reflect traffic light on spectrum order and uses

Activity Sheet includes:
• Task 1 — full EM spectrum completion table (dangers, uses, frequency/wavelength direction arrows) matching the lesson’s reference table
• Task 2 — 8 exam-style questions plus stretch
• Questions covering uses, dangers, ionising radiation, X-ray imaging, infrared applications
• Stretch question evaluates a student claim about UV vs X-ray danger
• Full mark scheme including completed table for teacher use