Ultimate CIE A-Level Physics Paper 5 Notes (9702 Planning & Analysis)
- Chern Jiek
- 4 hours ago
- 2 min read
Introduction
Mastering the CIE 9702 exam requires more than just memory; it requires a strategic approach. These a level physics paper 5 notes are designed to help you navigate the complexities of Question 1 planning and Question 2 data analysis.
Question 1: The Planning Masterclass
The planning question is worth 15 marks. To score full marks, your plan must be "workable."
The Big Three: Always state your Independent, Dependent, and Control variables in the first paragraph.
The Diagram: Your setup must be realistically positioned. If you are measuring the period of a pendulum, show the fiducial marker.
Procedure & Safety: Mention specific safety precautions (e.g., "Wear goggles when handling heated liquids" or "Use a sand tray for falling masses").
Question 2: Data Analysis & Graphing
This is where most students lose marks on precision.
Linearizing Equations: You must be able to transform non-linear equations (like y = ae^(bx) into the y = mx + c form using logarithms.
The LOBF and WAL: You are required to draw a Line of Best Fit (LOBF) and a Worst Acceptable Line (WAL).
Pro Tip: Use the Line of Best Fit Graph Maker to check your manual plots. It calculates the gradient and the WAL uncertainty automatically, making it the perfect tool for Paper 5 revision.
The 9702 Uncertainty Rules Cheat Sheet
Uncertainties are the "make or break" of Paper 5. Memorize these four core rules:
Adding/Subtracting: Add the absolute uncertainties.
Multiplying/Dividing: Add the percentage uncertainties.
Power Rule: Multiply the percentage uncertainty by the power.
Logarithms: The absolute uncertainty in ΔL = Δx / (2.3 * x)
Download the Paper 5 Revision PDF
Want to keep these notes on your tablet or print them for your lab folder? Download our 3-page CIE Paper 5 Cheat Sheet below. It includes the complete procedure checklist and all uncertainty formulas from the 2025/2026 mark schemes.
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