QCE PhysicsPractice Examination 15

This paper covers

• QCAA Physics Units 3 & 4 (General, 2025 v1.3) Practice External Assessment 15 of 20
• Stimulus context: a probe descending into a deep gravity well near a 12-solar-mass star — gravitational field strength vs radius, orbital/satellite speed, Kepler's laws, and relativistic length contraction at final orbital speed
• Unit 3 — Gravity and Electromagnetism: uniform circular motion and centripetal dynamics, Newton's Law of Universal Gravitation, gravitational field strength, Kepler's three laws, orbital mechanics, Coulomb's Law and electric fields, work on charges, the motor effect, electromagnetic induction (Faraday's and Lenz's Laws), AC generators and transformers/power transmission
• Unit 4 — Revolutions in Modern Physics: special relativity (two postulates, simultaneity, time dilation, length contraction, mass–energy equivalence), quantum theory (Planck, photoelectric effect, de Broglie duality, Bohr hydrogen model), the Standard Model (quarks/leptons, baryons/mesons, antiparticles, four forces and exchange bosons, conservation laws, Feynman diagrams)
• Format: Paper 1 (Section A 20 MCQ = 20 marks; Section B short/extended = 28 marks) + Paper 2 (Section C stimulus/data short and extended response = 49 marks); grand total 97 marks
• Assesses Assessment Objectives 1–4 only; higher-mark Paper 2 items target evaluate/justify/deduce/compare with full evidence → principle → conclusion reasoning chains; all working shown with correct SI units and significant figures, every value drawn from the QCAA Formula and Data Book

Students are permitted to bring into the examination the materials normally allowed for this subject. Answer all questions in the spaces provided.

This is an ATARMAxxing practice paper. It is not an official examination and is not affiliated with, endorsed by, or produced by the VCAA, NESA or the QCAA.