Master "plan an experiment" questions for A-Level practicals
Practical playbook for tackling the "plan an experiment" question in Cambridge AS/A Level Physics Paper 5, with scaffolds and evidence-backed tips.
Q: What does Master "plan an experiment" questions for A-Level practicals cover?
A: A practical strategy for Cambridge AS/A Level Physics Paper 5 planning questions, including scaffolds and evidence-based tactics to reduce anxiety and improve structure.
Are you flustered when you flip your practical paper and see a question on "Plan an experiment" page?
TL;DR
"Planning an experiment" questions compress a week-long research cycle into 75 anxious minutes.
Cambridge AS/A Level Physics (9702) Paper 5 is a 1 hour 15 minutes paper with two 15-mark practical-skills questions, so planning has to be clear and efficient.
These high-mark questions expect novices to think creatively and technically and provide almost no scaffolding.
Yet, with the right support, they are a uniquely powerful way to cultivate authentic scientific reasoning.
Planning skeleton: Use PEAR - Purpose, Equipment, Actions, Reliability - then adapt it to the exact experiment. Before writing, check aim, variables, apparatus, method, table, graph, uncertainty, reliability, and safety in that order.
Need more scaffolds? Steal ready-made rubrics and lab flows from our H2 Physics practicals hub so your practice plans mirror what Cambridge markers reward.
1. The planning-question conundrum
1a. What exactly is being assessed?
In Cambridge AS/A-Level Physics Paper 5, Question 1 alone is worth 15 marks and requires candidates to propose apparatus, method, analysis and evaluation from scratch.
1b. Why it feels brutally hard
| Pain-point | How it bites |
| Cognitive-load overload | Students must juggle equipment choice, variable control, measurement precision and error analysis simultaneously - a textbook recipe for split-attention overload. |