Electromagnetic waves and polarisation
Calculate wavelengths and apply oscillating-charge and antenna-polarisation rules.
Loading personal best…Year 12 · SACE Stage 2
Light and atoms
Practise light, quantum behaviour, atoms and particle physics.
Subtopics
Coherence, phase and superposition
Classify interference using path difference and combine signed wave amplitudes.
Loading personal best…Young’s double-slit fringes
Calculate fringe spacing, wavelength and orders using the small-angle approximation.
Loading personal best…Diffraction gratings and spectra
Convert line density into slit spacing and calculate angular orders.
Loading personal best…Photon energy and momentum
Calculate photon quantities and distinguish individual photon energy from beam intensity.
Loading personal best…Photoelectric thresholds and stopping voltage
Apply Einstein’s energy equation and interpret linear photoelectric data.
Loading personal best…X-ray tubes and spectral features
Calculate spectral cutoffs and identify how tube controls change X-ray output.
Loading personal best…de Broglie waves and electron diffraction
Calculate matter wavelengths and identify the evidence requiring wave behaviour.
Loading personal best…Continuous and line spectra
Classify spectra and match line patterns to element identities.
Loading personal best…Atomic transitions, hydrogen and ionisation
Use energy-level differences to calculate photon energies and classify transitions.
Loading personal best…Fluorescence, stimulated emission and lasers
Classify emission processes and apply population-inversion and photon-energy rules.
Loading personal best…Quarks, leptons and force carriers
Classify particles and calculate charges of baryons, mesons and antiparticles.
Loading personal best…Conservation rules and annihilation
Balance charge, baryon and lepton numbers and calculate annihilation energy.
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