QCE PhysicsPractice Examination 20

This paper covers

• Unit 3 Gravity and Electromagnetism: uniform circular motion, Newton's universal gravitation, gravitational field strength and Kepler's laws, orbital/satellite mechanics, Coulomb's law and electric fields, work on charges, motor effect, electromagnetic induction (Faraday/Lenz), AC generators, transformers and power transmission
• Unit 4 Revolutions in Modern Physics: special relativity (postulates, simultaneity, time dilation, length contraction, mass-energy equivalence), quantum theory (Planck's hypothesis, 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)
• Stimulus thread: a magnetically confined ionised-hydrogen plasma emitting a blackbody spectrum, used to contrast the classical Rayleigh-Jeans prediction with the Planck quantised spectrum, locate the peak wavelength via Wien's law, and identify the soft X-ray regime
• Assessment Objectives 1-4 only: describe/explain, apply, analyse evidence, interpret evidence; higher-mark Paper 2 items use evaluate, justify, deduce and compare with a full evidence-to-principle-to-conclusion reasoning chain
• Band A standard: correct QCAA formula stated, substitution with units, step-by-step algebra, final SI answer to appropriate significant figures, precise terminology, follow-through marking

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.