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A Level Physics revision, smart practice and teacher-built feedback for OCR A and AQA

PhysicsUK helps OCR A and AQA A Level Physics pupils revise key topics, practise exam-style questions, receive instant feedback, and strengthen written explanations.

Built for OCR A (H556) & AQA (7408) Teacher-written explanations Worked examples and misconceptions Interactive simulations Intelligent feedback for written answers

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Moving up a stage? Browse the OCR A & AQA transition guides (GCSE to AS and AS to A Level). Looking for revision routes? Start with OCR A Level Physics revision, A Level Physics MCQ practice, or A Level Physics problem solving practice.

Daily Question

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AS · Foundations of Physics (M2)

In a lab rig, a mass is hung from a plate attached to the ceiling by two branches in parallel. Branch 1 is a single light spring of constant k. Branch 2 is two identical light springs, each of constant k, connected in series. The branches share the same extension when loaded. Compared with using only the single spring on its own for the same mass, which statement must be true?

A2 · Nuclear physics (A2): activity, decay law (qual.), half-life

In a school lab, a GM tube measures background radiation at 40 s⁻¹. With a sealed source at a fixed distance, the initial total count rate is 1040 s⁻¹. Several hours later, under identical setup, the total count rate is 140 s⁻¹. Assuming the detector response and geometry are unchanged, which statement must be true about the time elapsed?

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